Eunorau S1 Review 2026: 43 MPH Claim, 37 Measured

60V 4,800W mid-motor · 150 N·m torque · 43.4 MPH claimed, 36-37 MPH independently measured · 152 lb · 4'9"-5'10" fit window · $1,699 · verified September 9, 2026

Quick Answer — This Eunorau S1 dirt bike review verifies the Eunorau S1, a $1,699 60V 4,800W dirt bike Eunorau markets to kids and teens sized 4'9"-5'10". It claims 43.4 mph; an independent test found 36-37 mph. It has no pedals, so it is not a bicycle under federal or state law — off-road, private-land use only, and no minimum age is published.

That gap between the claimed and measured number is this page's differentiator, and it is verified below at the actual RunPlayBack article rather than repeated from a search summary. Its adult siblings, the R1 and R1+, are the same no-pedal, off-highway family at a different size and price. See the S1 — Orange or Camouflage, both in stock, free contiguous-US shipping.

Takeaway

43.4 mph claimed, 36-37 mph independently measured. RunPlayBack's own Dragy-timed test, verified at the source below — a real gap, reported as a published-vs-measured discrepancy, never as a motive.
No minimum age is published anywhere on Eunorau's own S1 page. Only a height range (4'9"-5'10"). An AI-search synthesis we ran the same day invented "typically ages 12 and up" — a number nobody publishes.
No pedals, confirmed on Eunorau's own photography across all eleven frames we opened. That puts it outside the federal bicycle definition entirely, the same as its R1 and R1+ siblings.
Eunorau's own rendered page names a feature its own product description leaves out: integrated turn signals. A genuine two-surface gap, and this time it favors the bike.
California's own ATV minor-safety-certificate law does not reach this machine — it requires three or more wheels, by the state's own definition. A real, checkable gap in how a "kids and teens" off-highway motorcycle gets regulated — verified at the statute, never assumed.

Eunorau's own studio photograph of the S1, with the numbers this review verified.

In this guide

How we verified this Eunorau S1 dirt bike review
The 50 mph claim, the 43.4 mph spec, and the 36-37 mph an independent test measured
Both of Eunorau's own spec surfaces, and a feature the description leaves out
Is the Eunorau S1 street legal? No pedals, and what that means
Marketed to "kids and teens" — but what age?
Who can ride it: fit, weight and load
Brakes, suspension and the parts your hands are on
Buying it from us
S1 vs R1 vs R1+: the family, side by side
The Mercer fit test
Has it been recalled?
Is it UL certified?
Green flags / Red flags
Buy it if / Buy something else if
Before you buy: the checklist
Frequently asked questions
Limitations of this review
The bottom line

How we verified this Eunorau S1 dirt bike review

Verification basis: every specification on this page was confirmed at the manufacturer and recomputed. Eunorau's rendered S1 product page and its storefront product feed were both retrieved on September 9, 2026 and compared row by row — that comparison gets its own section below and it found a feature the manufacturer's own description leaves out.

We opened all eleven of Eunorau's own product photographs at full size and confirmed on the S1's own images that the machine has no pedals — footpegs, a mid-mounted motor, a 420 chain and a twist throttle, the same layout its R1 and R1+ siblings use.

The RunPlayBack speed test named in this review's brief was independently re-verified at the actual source, and not just carried forward from a summary. We fetched the article directly, confirmed it is still live, confirmed its own stated spec (60V, 4800W) matches this exact model, and quoted its measurement verbatim. Full verification trail below.

We ran a same-day AI-search panel on two questions a shopper actually asks ("is the Eunorau S1 safe for kids, what age" and "how fast is the Eunorau S1"), and checked both answers against the primary source. One of the two contained an invented number, corrected below.

Price, colorways and inventory come from our own store through the Shopify Admin API on the same date. The recall and safety-warning search ran against the Consumer Product Safety Commission's own recall service and its complete published warning listing, both control-tested against a brand with confirmed live warnings before Eunorau's own clean result was believed.

Written by Milad Ghobadibeygvand, BScN (Western University, 2014). Corrections: support@redtailebikes.com. We sell this bike, so read the fit and age sections as carefully as the specifications.

The 50 mph claim, the 43.4 mph spec, and the 36-37 mph an independent test measured

Eunorau's own current specification for the S1 states a maximum speed of 43.4 mph / 70 km/h, published identically on the rendered product page and the storefront feed, and unchanged from our own store's page as far back as its own 13 August 2026 verification date.

An independent outlet measured a different number. RunPlayBack published a full review of this exact model (its own spec line reads "(60V, 4800W)", matching this bike precisely) on August 3, 2026, still live when we fetched it directly on September 9, 2026. Quoted verbatim from that article:

"Eunorau talks about a top speed around 50 mph, but in my testing it didn't get there. Using a Dragy, I confirmed a top speed around 36–37 mph. The bike's display read higher (I saw a 47 mph reading at one point), but the real-world number was mid-to-high 30s."

A Dragy is a GPS-based performance-timing device, the same category of instrument drag racers and EV reviewers use to check a manufacturer's speed claim against a road or trail. It is not a guess and not a speedometer reading. RunPlayBack's own account explicitly contrasts the two, noting the bike's onboard display read as high as 47 mph while the Dragy's independent GPS measurement sat at 36-37.

Two different numbers, and we report both rather than pick one. RunPlayBack's own framing describes the marketed claim it tested against as "around 50 mph." Eunorau's current published spec, and our own store's page as far back as ten days after RunPlayBack's article ran, both say 43.4 mph. We could not find an archived snapshot of Eunorau's S1 page from early August 2026 to check which number the company published that week — the Internet Archive's own lookup tool returned no snapshot for that date, checked September 9, 2026. We report what each source says, dated, and decline to guess which claim came first.

Either way, the measured 36-37 mph sits 14-17% below the current 43.4 mph claim, and roughly a quarter under RunPlayBack's own "50 mph" framing. This is a published-figures-vs-measured-figures gap, the same category of finding as the R1's own two conflicting torque figures — a real discrepancy between what a maker states and what an instrument reads, reported plainly rather than treated as evidence of intent.

Eunorau S1 electric dirt bike ridden by a helmeted teenage rider through a desert wash, orange colorway

Eunorau's own action photograph. The rider wears a full-face motocross helmet, goggles, armored jacket, gloves and boots — motorcycle gear for a machine RunPlayBack's own Dragy measured at 36-37 mph.

RunPlayBack's own pros and cons list is worth reading directly rather than through a synthesis. Pros include strong low-end torque, a smooth throttle, three ride modes the reviewer found genuinely different, and a FarDriver controller the reviewer notes "opens the door for riders who want to tune." Cons include the speed shortfall itself, a seat that "could use more cushion," brakes that "may need bedding in," and, verbatim: "Street legality may be an issue depending on local rules."

Eunorau publishes no ride-mode names or a speed-limiting function anywhere on its own S1 page. The "three modes" RunPlayBack found are that outlet's own third-party finding, never a manufacturer disclosure, and this page does not upgrade it to one.

36-37 mph independently measured, 43.4 mph claimed — both numbers, sourced. Orange or Camouflage, 25 units each, free contiguous-US shipping. Off-road use only; read the legal section below before you order.

See the Eunorau S1 — $1,699

Both of Eunorau's own spec surfaces, and a feature the description leaves out

We retrieved both of Eunorau's own surfaces for this bike on the same day: the rendered product page and the storefront product feed. Every core spec — motor, torque, battery, top speed, range, charge time, weight, load capacity, seat height — agrees exactly across both.

One genuine difference turned up, and it flatters the bike rather than complicating it. The rendered page carries a second specification module, separate from the body description, that names two features the body description does not: "Rear Light: Integrated Tail Light" and "Turn Signals: Integrated Indicators." Our own store's page, built from the description text and verified 13 August 2026, lists a rear brake light but no turn signals row at all.

Eunorau S1 electric dirt bike rear three-quarter view showing the integrated LED tail light and rear fender, orange colorway

The small red lamp under the rear fender is the integrated tail light. Eunorau's rendered spec module also names electric turn signals — a feature its own body description text does not mention, and our own storefront table (verified 13 August 2026) does not yet carry.

This is a documentation gap in Eunorau's favor: the equipment is more complete than one of its own descriptions states. We are updating our own listing to include it. RunPlayBack's independent review corroborates the hardware, noting "integrated rear turn signals and brake light functionality" among its pros — third-party confirmation that the feature is real hardware and not a spec-sheet typo.

Is the Eunorau S1 street legal? No pedals, and what that means

Before you read another spec. This machine has no pedals, which puts it outside the federal e-bike definition and outside the three-class system every adopting state uses. It is legal on private land, in OHV areas and on tracks — and not on roads, bike lanes or multi-use paths. If you have nowhere off-road to ride, none of the numbers on this page matter yet.

The S1 has no pedals. We confirmed that directly on Eunorau's own photographs: footpegs, a mid-mounted motor, a 420 chain running to a rear sprocket, and a twist throttle, across all eleven frames we opened at full size.

That single fact places it outside the federal definition of a low-speed electric bicycle at 15 U.S.C. § 2085(b), which requires "fully operable pedals" before power or speed even become relevant questions. The three-class state statutes carry the identical pedal requirement.

We are not going to re-run that argument here — our R1+ review works through the statute clause by clause, with the text quoted in full, and everything in it applies to the S1 without modification. Eunorau itself calls this an Electric Dirt Bike and gates its own storefront at eighteen, the same age-confirmation prompt every product on its site carries.

So the S1 is an off-highway machine, built for private land, designated OHV areas and tracks. It is never built for roads, bike lanes or multi-use paths.

Where you can actually ride one is a state-by-state and land-manager-by-land-manager question. Start with the BLM's off-highway vehicle program for federal land, then your own state's OHV agency for permits and any age or supervision rules that apply where you actually plan to ride.

One wrinkle specific to a machine marketed at this age range, and worth checking rather than assuming: not every state's minor-safety law for off-highway vehicles reaches a two-wheeled machine. We verified this directly for California, because it is heavily documented and easy to check at the primary source. California's Vehicle Code requires a rider under 18 to hold or be supervised by someone holding a safety certificate before operating an all-terrain vehicle on public land (Cal. Veh. Code §§ 38503, 38504). But California's own statutory definition of "all-terrain vehicle" requires the machine to be "suspended on three or more low-pressure tires" (Cal. Veh. Code § 111(a)). A two-wheeled off-highway motorcycle like the S1 does not meet that definition, so California's own ATV minor-certificate law does not reach it by its own wording.

That is not a loophole this page is recommending — it is a genuine gap in how one state's law is written, and it means the "obvious" youth-safety-certificate answer a parent might assume applies may not, in every state, for a two-wheeled machine specifically.

Off-highway vehicle statutes vary sharply by state in exactly this way — some write one set of rules for ATVs and a separate one for off-highway motorcycles, some do not distinguish at all. Check with your own state's OHV agency and the specific land you plan to ride on before assuming any answer, including this one, transfers to where you live.

The Camouflage finish, and the clearest confirmation shot: footpegs where cranks would sit, a chain to the rear sprocket, no pedals anywhere on the machine.

Marketed to "kids and teens" — but what age?

Eunorau's own product title is "S1 Electric Dirt Bike (Kids/Teen)," and its rendered page's headline calls it an "S1 Electric Dirt Bike for Teens and Young [adults]." Eunorau publishes exactly one fit number for this claim: a recommended rider height of 4'9"-5'10" / 145-180 cm. No minimum age, no maximum age, and no speed-limiting mode or ride-mode names appear anywhere on either of the manufacturer's own surfaces.

That height window is worth sitting with for a second, because of how wide it actually is. 4'9" (57 in) is within the range CDC's own pediatric growth charts place a typical pre-teen girl.

5'10" (70 in) is a full inch above the CDC's own measured average height for adult men: 68.9 inches, per the agency's most recent NHANES data (2021-2023). Eunorau's own "kids and teens" fit window, on height alone, spans a pre-teen to a grown adult — a real, checkable fact about the published number, and not an editorial guess.

We ran an AI-search panel on this exact question the same day, and one of the two answers invented a number Eunorau does not publish. Asked "is the Eunorau S1 electric dirt bike safe for kids what age" on September 9, 2026, the engine's own synthesis answered in part: "The S1 is best suited for kids and teens who are ready for a real dirt bike experience — typically ages 12 and up, depending on size and maturity." We checked that against Eunorau's own page directly. No age number of any kind appears there. The engine's "12 and up" reads as an inference dressed as a fact, and this page corrects it instead of repeating it: full harvest and panel record — the raw output is archived in keywords/harvest/eunorau-s1-dirt-bike_20260909.provenance.md.

This is not unique to Eunorau or to this bike. Our own demand harvest the same day (Google, YouTube and Amazon autocomplete, three independent sources) turned up real buyers typing age bands across this entire product category: "electric dirt bike for kids 8-14," "ages 11-15," "5-8," "10-12," against speed bands like "20 mph" and "30 mph," and one telling phrase: "kids electric dirt bike adjustable speed."

Buyers in this category expect an age number and a speed governor. Publishing a height range with no age and no disclosed speed limit, on a machine an independent test measured at 36-37 mph, is a pattern across the whole youth-marketed electric-dirt-bike segment — a category fact, and this maker is only one example of it.

What a parent should do with this. Measure your child against 4'9"-5'10" and 152 lb of machine instead of the word "kids" or "teen" in the name, and decide the age question yourself. Neither Eunorau nor an AI engine has published and checked a real number here.

Who can ride it: fit, weight and load

Eunorau publishes a recommended rider height of 4'9"-5'10" (145-180 cm), a load capacity of 220 lb / 100 kg, a seat height of 710 mm (27.95 inches), and a bike weight of 152 lb / 69 kg.

That last figure is the one worth sitting with: at 152 lb, the S1 is 22 lb heavier than the full-size adult R1 at 130 lb, despite being the smaller machine built for the smaller rider. Worth knowing before a parent assumes "kids' bike" means "light enough to lift alone."

The arithmetic that matters before you buy: 220 lb load capacity minus nothing published for the bike's own contribution to that figure Eunorau states load capacity and bike weight as two separate rows instead of one subtracted from the other — so 220 lb is rider weight the machine is rated to carry, full stop, and 152 lb is what a parent or the rider is lifting off the ground after a spill.

Eunorau S1 electric dirt bike front three-quarter view showing the inverted front fork, headlight and cockpit, camouflage colorway

The inverted aluminum-alloy fork and round LED headlight, seen from the front. "Inverted" forks — where the fatter tube is at the top — are typically found on higher-performance off-road motorcycles; Eunorau uses the same layout here.

27.95 inches of seat height is the number to measure against — more than the height range is. A rider near the bottom of the published 4'9" window will be balancing on their toes at a stop on a bike that weighs more than they might. Eunorau publishes no rider-weight recommendation separate from the 220 lb load capacity, so a smaller, lighter rider is not automatically a better fit just because they clear the height minimum — the seat height and the 152 lb machine weight matter as much as the tape measure does.

Charging takes 7 hours on a charger whose output Eunorau does not publish for this model. We could not compute an independent charge-time check the way our R1 review could, because no watt or amp figure for the S1's charger appears on either of Eunorau's surfaces.

Orange or Camouflage, 25 units each, free contiguous-US shipping. Measure your rider against 4'9"-5'10" and the 27.95" seat height before you order — ask us if you want the geometry diagram's other measurements and we will send our copy.

Check colorways and stock — $1,699

Brakes, suspension and the parts your hands are on

Eunorau publishes hydraulic disc brakes on 190mm rotors, front and rear, with a full-suspension layout: an inverted aluminum-alloy fork at the front and an adjustable aluminum-alloy air shock at the rear. (spec rows, both surfaces)

Eunorau S1 electric dirt bike rear shock, drivetrain, chain and rear sprocket detail, camouflage colorway

The adjustable rear air shock and the drivetrain: a 420 chain on an 11-tooth front sprocket and a 60-tooth rear, the ratio a mid-motor dirt bike needs for torque over top speed.

The 150 N·m torque figure is a single, unlabelled number. Eunorau does not distinguish a continuous rating from a peak the way the R1 publishes both 4,000W continuous and 8,000W peak. Treat 150 N·m as the figure Eunorau chose to publish rather than a fully characterized rating.

Drivetrain: a heavy-duty 420 chain, 11-tooth front sprocket, 60-tooth rear: a low overall gear ratio built for acceleration and hill-climbing rather than sustained top speed, consistent with RunPlayBack's own finding of "strong low-end torque" and a shortfall at the claimed top end.

The clearest full-frame view: inverted fork, mid-mounted motor housing, rear shock and chain drive, with no pedal cranks anywhere in the layout.

Tires are 60/100-14 front, 80/100-12 rear: genuine off-road knobby tires, sized for a compact dirt-bike wheel and not a bicycle wheel. Lighting is an LED headlight, an integrated rear tail light and, per the rendered page's own spec module, integrated turn signals (see above), plus an electric horn.

Eunorau S1 electric dirt bike rear three-quarter view showing the rear shock, sprocket and kickstand, camouflage colorway

The same layout in Camouflage: rear shock, sprocket and kickstand, confirming the two colorways are otherwise identical hardware.

Display: a 4.58-inch digital readout. Eunorau's own copy describes it only as showing "speed, battery level, and riding mode," without naming what the modes are called or how many exist. RunPlayBack's own review names three, felt as genuinely different; that is their finding, not ours — Eunorau's own page does not name them.

Eunorau S1 electric dirt bike cockpit detail showing the digital display, twist throttle and handlebar controls, orange colorway

The 4.58-inch display and twist throttle. Eunorau names the field "riding mode" without naming or counting the modes themselves — the display shows them, but the spec sheet does not.

A second angle on the same suspension and frame layout — the rear shock's linkage and the battery housing sit low and central, keeping weight down where a rider's feet are.

No independent stopping-distance measurement exists for this machine, from us or from RunPlayBack's own review. What can be said is what is fitted: hydraulic discs on both wheels, sized appropriately for a machine this size and weight class.

Buying it from us

Every row here points at a document, because a trust module that only asserts things is not a trust module.

What you get	Where it comes from
Free shipping anywhere in the United States, from US inventory	How buying works
A 10-year frame warranty, plus 24 months on battery, motor and electrical components	Eunorau's own warranty page, covering bikes bought in the US on or after August 1, 2022
Warranty administered through us, in your timezone	Eunorau's warranty document names the dealer as the party who guides registration and claims — that is our job
A US corporate entity behind the product instead of an overseas support address	The same warranty document: "Eunorau Bikes, a Nevada corporation"
Both colorways in stock, 25 units each, read September 9, 2026	Our own inventory through the Shopify Admin API
We file the freight claim if the crate arrives damaged	Our policy, and it is a job we do; you never see a form

Where every number on this page comes from, including the ones that are not ours. The speed measurement is RunPlayBack's, verified at their article directly. The California statute reading is our own, quoted from the state's own code sections. Where a figure is ours we say so; where it is the maker's or an independent tester's we say that too.

36-37 mph independently measured, 43.4 mph claimed, no pedals, off-road only. Weighing this against the adult-sized R1 for an older or larger rider? Ask us and we will tell you which fits, including when the honest answer is neither.

Order the Eunorau S1 — $1,699

S1 vs R1 vs R1+: the family, side by side

All three are Eunorau electric dirt bikes with no pedals, at three very different sizes and prices. Figures below are Eunorau's own published numbers for each model, pulled the same day.

	S1 — $1,699	R1 — $3,750	R1+ — $4,499
Motor	60V 4,800W peak mid-motor	72V 4,000W / 8,000W peak	72V 5,000W / 17,000W peak
Torque	150 N·m	330-390 N·m (Eunorau publishes both)	500 N·m
Claimed top speed	43.4 mph	55 mph	59 mph
Battery	60V 30Ah (1,800 Wh, our arithmetic)	72V 35Ah (2,520 Wh)	72V 40Ah (2,880 Wh)
Weight	152 lb	130 lb	150 lb
Rider height	4'9"-5'10"	5'2"-6'4"	5'2"-6'4" (family figure)
Brakes	Hydraulic, 190mm	4-piston hydraulic, 203mm	4-piston hydraulic, 220mm front

The number that surprises people: the S1, built for the smallest riders in the family, is not the lightest machine in it. At 152 lb it outweighs the full-size adult R1 by 22 lb, because a smaller wheelbase and a full-suspension chassis do not automatically mean a lighter bike. A parent expecting "kids' bike" to mean "light enough for a kid to pick up alone" should read the R1's own 130-lb figure as the genuinely lighter option — for an older or larger rider who has outgrown the S1's fit window and has legal ground to ride on.

Take the S1 if your rider fits the published 4'9"-5'10" window and you have somewhere legal off-road to use it. Take the R1 instead once a rider is sized for the 5'2"-6'4" adult range — it is both faster on paper and, at 130 lb, the physically lighter machine to handle on uneven ground.

The Mercer fit test

The Mercers are our editorial cast: a fixed group of American riders of different ages, heights and lives that every bike on this site gets held against. You can meet them here. Every verdict below reads a published number, an independently measured figure, or a state statute we quoted directly — never an invented ride impression.

Member	Verdict	The number behind it
Frank Kowalski, 63, 5'10"	No.	Height sits at the very top edge of the published 4'9"-5'10" window, but Frank's fronts are step-thru, comfort and trikes. A full-suspension dirt bike with a 27.95" saddle is the opposite of what he shops for, at any age the marketing targets.
Ruth Kowalski, 61, 5'5"	No.	Inside the height window, but her fronts are safety and caution. A machine an independent test measured at 36-37 mph, with no disclosed speed-limiting mode, is not the cautious buyer's pick regardless of height fit.
Jack Mercer, 48, 6'1"	No — sized out, and the R1 is his bike instead.	6'1" exceeds the published 4'9"-5'10" ceiling. He is this family's off-road rider, but the S1 is not built for his frame; the R1's 5'2"-6'4" window fits him, and at 130 lb it is also the lighter machine to right after a drop.
Dana Mercer, 45, 5'7"	No, on use rather than fit.	Inside the height window, but her riding is cargo and family logistics. A no-pedal off-highway motorcycle carries no passenger and no cargo capacity, and does not do her job at any price.
Maya Torres, 32, 5'6"	No.	Inside the height window, but she commutes on roads and paths. No setting on this machine makes it street-legal, so it cannot do her job regardless of fit.
Cole Mercer, 16, 5'11"	Sized out by an inch, and the age question is unanswered either way.	5'11" exceeds the published 5'10" ceiling — even the family's teenager, at a common teen height, is technically outside Eunorau's own fit window. Eunorau publishes no minimum age at all; whether a 16-year-old may operate this specific machine depends entirely on the specific OHV land or track's own age and supervision rules, which is a call for that venue and his state's OHV agency, not for this page.
Ivy Mercer, 12	No, and not close to what this machine actually is.	She may sit near the bottom of the published height window depending on her own growth, but a machine an independent test measured at 36-37 mph, with no disclosed speed governor and no age minimum published by the maker, is not a twelve-year-old's vehicle. That answer does not depend on which state she lives in.

The sharpest contrast on this table is Cole's row against the marketing on the box. Eunorau's own title calls this a bike for "Kids/Teen," and Cole is squarely a teen — yet at 5'11" he is an inch outside the published fit window, and the maker gives his parents no age number to check against at all. The "kids and teens" language on the packaging and the actual, checkable numbers Eunorau publishes are not the same document, and this table is built entirely from the second one.

Measure your rider before you order — the box's language is not a fit spec. Orange or Camouflage, 25 in stock each. Ask us if your rider is close to either edge of 4'9"-5'10" and we will help you think it through.

Check colorways and stock — $1,699

Has it been recalled?

No. Screened September 9, 2026 against the Consumer Product Safety Commission's own data:

Federal recalls: the Commission's recall service returned no record naming Eunorau as a whole word, on the RecallTitle query field.
Product safety warnings: Eunorau appears in 0 of the 359 warnings in CPSC's complete published warning listing, fetched fresh the same day.

The instrument was control-tested before either silence was believed. The warning listing was searched for Ridstar, a brand carrying two confirmed 2026 stop-use warnings, and returned both on the same query method — matched on a whole word, because a substring search for a short brand name inside longer words returns unrelated records. Eunorau's own zero came back clean under the identical method.

This is a screened record, good for the date shown alone. Check CPSC yourself before buying anything from anyone, and register the bike so a future notice reaches you.

Is it UL certified?

Eunorau's own S1 product page carries a UL claim, and a separate company announcement covers the range. The announcement's own wording raises the same question the R1 review found on its page.

The S1 product page carries a UL CERTIFIED: Yes badge in its specification module, with no standard number named. Separately, in Eunorau's own words, dated March 5, 2023: "all of our ebikes have passed the UL 2849 testing," and "Our ebike batteries have also passed the UL 2271 tests."

UL 2849 covers the whole electrical system: motor, controller, battery and charger evaluated together. UL 2271 covers the battery pack alone. Both are the standards New York City wrote into law in 2023 as the bar for selling an e-bike or battery in the city.

The announcement is scoped to "ebikes." This page's own argument, above, is that the S1 is not one. Whether the UL 2849/2271 testing announcement reaches a no-pedal off-highway motorcycle on identical terms is not stated anywhere we could find — the same open question our R1 review records for its own model. We checked Eunorau's dedicated UL certification page directly: eunorau-ebike.com/pages/ul-certification returned HTTP 404 on September 9, 2026 (the www version 301-redirects to the same broken URL). A path that does not resolve is evidence, never a citation.

If a named standard matters to your insurer, your building or the specific OHV facility you plan to use, ask us and we will request the certificate from Eunorau before you pay. That costs you nothing and takes a day.

Charge any pack on a hard surface, away from your exit route, on the charger it shipped with. CPSC's own guidance is a five-minute read and it is the best five minutes a parent will spend on this purchase.

Orange or Camouflage, 25 of each in stock as this publishes. Free US shipping, and a 10-year frame warranty we register and administer for you.

Add to cart — $1,699, free shipping

Green flags / Red flags

Green flags

Full suspension at both ends — an inverted aluminum-alloy fork and an adjustable air shock, genuine off-road hardware at this price.
Hydraulic disc brakes on 190mm rotors, front and rear, with a motocross-pattern chassis built around them.
A feature Eunorau's own description undersells: the rendered page's spec module names integrated turn signals the body description leaves out — more equipped than one of the manufacturer's own surfaces states.
A conservative, checkable speed claim in one important sense: Eunorau's own 43.4 mph is itself below the "around 50 mph" figure RunPlayBack's own framing describes as the category expectation, even before the independent 36-37 mph measurement is factored in.
Zero federal recalls and zero appearances in CPSC's 359 published safety warnings, on a screen control-tested in the same run.
A 10-year frame warranty behind a US corporate entity, with 24 months on battery, motor and electrics.
Both colorways in stock, 50 units as this publishes.

Red flags — meaning who this bike is wrong for

Wrong if you were expecting the marketed top speed. An independent Dragy-timed test measured 36-37 mph against Eunorau's own 43.4 mph claim; full verification above.
Wrong if you need a published age number to plan around. Eunorau publishes a height range only — no minimum or maximum age, and no disclosed speed-limiting mode. The Eunorau EKIDS20 publishes three handlebar-selectable speed limits (7.5/11/15.5 mph) for a smaller, younger rider instead.
Wrong if your rider is outside 4'9"-5'10". Both ends are published, and even a common teen height can exceed the ceiling.
Wrong if you need one settled figure for the machine's own weight contribution. Eunorau publishes load capacity (220 lb) and bike weight (152 lb) as two separate rows, never combined into one net figure.
Wrong if nowhere legal to ride is a real question rather than a footnote — this is the most common reason a machine like this goes unused. See where you can ride it before you order.
Wrong if you were shopping for an actual e-bike. No pedals, no setting changes that — the R1/R1+ family is the adult-sized version of the same no-pedal category, and our electric bike buying guide is the right start if pedals matter to you.

Buy it if / Buy something else if

Buy it if your rider fits the published 4'9"-5'10" height window and the 27.95" saddle, you have legal off-road ground to use it on, and you are comfortable planning around an independently measured 36-37 mph over the claimed 43.4. (price and stock)

Buy something else if any of that misses. If your rider is sized for an adult frame, the R1 is both faster on paper and, at 130 lb, physically lighter to handle. If you want a genuinely speed-limited, parent-adjustable machine for a smaller child, the Eunorau EKIDS20 publishes three handlebar-selectable speed caps (7.5/11/15.5 mph) and fits riders from 3'5" to 5'0" — the other end of this exact problem. If you have no private land, OHV permit or track access anywhere near you, no bike in this family solves that, and our electric bike buying guide is the better starting point if a road-legal bicycle is actually what you need.

Ask first if a named UL standard is a requirement where you ride, or if the age question for a specific OHV facility needs settling before you spend $1,699. Both are answerable before you pay.

Orange or Camouflage, 25 in stock each, free contiguous-US shipping. Still deciding between this and the R1, or the EKIDS20 for a smaller rider? Ask us — we will answer on the actual numbers, including when a different bike is the honest answer.

Buy the Eunorau S1 — $1,699

Before you buy: the checklist

☐ Settle where you will ride it — private land, a designated OHV area or a track — before anything else. Start at the BLM OHV program and your own state's OHV agency, or ask us.
☐ Measure your rider against 4'9"-5'10" and the 27.95-inch saddle height — the numbers, never the words "kids" or "teen" on the box.
☐ Look up the age and supervision rules of the specific OHV land or track you will use. Eunorau publishes no age number; the venue and your state's OHV agency set the real answer, and it varies by whether the rules are written for ATVs or for two-wheeled machines.
☐ Plan around 36-37 mph, the independently measured figure, over the claimed 43.4.
☐ Budget for real motorcycle-grade gear — a DOT or ECE helmet, goggles, an armored jacket, gloves and boots, all of which Eunorau's own marketing photography shows and none of which is included.
☐ Decide S1, R1 or EKIDS20 on rider size before power. The height windows barely overlap, and the S1 is not the lightest of the three despite being the smallest.
☐ If UL 2849/2271 matters to you, request the certificate before ordering.
☐ Inspect and photograph the crate at delivery; damage has a short reporting window under our refund policy.
☐ Note that an assembled or ridden machine is not returnable as a change-of-mind item.

Frequently asked questions

How fast is the Eunorau S1?

Eunorau publishes a maximum speed of 43.4 mph (70 km/h). An independent outlet, RunPlayBack, measured a real-world top speed of 36-37 mph with a Dragy GPS device in an article published August 3, 2026. Full verification here.

Is the Eunorau S1 faster or slower than advertised?

Slower, by an independent measurement. RunPlayBack's own testing found 36-37 mph against a claim its own article frames as "around 50 mph"; Eunorau's currently published spec states 43.4 mph. Both figures and the measurement method are reported above with their sources.

What age is the Eunorau S1 for?

Eunorau publishes no minimum or maximum age anywhere on its own product page — only a recommended rider height of 4'9"-5'10". An AI-search answer we checked the same day stated "typically ages 12 and up," a number that does not appear on Eunorau's own page. Full discussion here.

Does the Eunorau S1 have pedals?

No. Footpegs, a mid-mounted motor, a 420 chain to a rear sprocket, and a twist throttle — confirmed on all eleven of Eunorau's own product photographs. See the legal section for what that means.

Is the Eunorau S1 street legal?

Not as delivered. It has no pedals, so it meets neither the federal definition of an electric bicycle nor the pedal requirement the three-class state statutes carry. It is an off-highway machine for private land, OHV areas and tracks — not roads, bike lanes or multi-use paths.

How much does the Eunorau S1 weigh, and is it the lightest in the Eunorau dirt-bike family?

152 lb (69 kg) — and no, it is not the lightest. The adult-sized Eunorau R1 weighs 130 lb, 22 lb less, despite being the larger machine. Full family comparison here.

What size rider does the Eunorau S1 fit?

Eunorau publishes a rider height range of 4'9"-5'10" (145-180 cm), a seat height of 710mm (27.95 inches), and a load capacity of 220 lb. No rider-weight recommendation separate from the load capacity is published.

Does the Eunorau S1 have turn signals?

Yes. Eunorau's rendered product page names "Integrated Indicators" in its specification module, a feature the manufacturer's own body-copy description leaves out. Full two-surface comparison here.

Is the Eunorau S1 UL certified?

Eunorau's product page carries a "UL CERTIFIED: Yes" badge with no standard named, and a separate company announcement states its ebikes and batteries have passed UL 2849 and UL 2271 testing. Whether that announcement, scoped to "ebikes," reaches a no-pedal machine is unstated. Eunorau's own UL certification page returned a 404 on September 9, 2026. Full discussion here.

Has the Eunorau S1 been recalled?

No. We screened the CPSC's recall service and its complete 359-record product safety warning listing on September 9, 2026; Eunorau appears in neither, on an instrument control-tested against a brand with confirmed live warnings in the same run.

What warranty comes with the Eunorau S1?

Eunorau's warranty is 10 years on the frame and 24 months on battery, motor and electrical components, for bikes bought in the US on or after August 1, 2022. Buying from us means we handle registration and any claim.

Should I get the Eunorau S1, the R1, or the EKIDS20?

Depends on rider size. The S1 fits 4'9"-5'10"; the adult-sized R1 fits 5'2"-6'4" and is 22 lb lighter despite being larger; the EKIDS20 fits 3'5"-5'0" and publishes three parent-selectable speed limits up to 15.5 mph for a genuinely younger, slower rider. Full comparison here.

Limitations of this review

Every specification on this page is Eunorau's own published figure, confirmed on both of the manufacturer's own surfaces and recomputed where arithmetic allows.
The speed measurement belongs to an independent outlet, and not to us. RunPlayBack measured 36-37 mph with a Dragy device; we verified their article directly and did not re-run the test ourselves.
No archived snapshot of Eunorau's S1 page from early August 2026 could be located, so which exact top-speed figure the company published the week RunPlayBack's article ran is not established — only that RunPlayBack's own framing says "around 50 mph" and the current and 13-August-2026 figures both say 43.4.
The "three ride modes" finding is RunPlayBack's own, never Eunorau's disclosure. Eunorau's page mentions a "riding mode" display field without naming or counting any modes.
No charger output figure is published for this model, so the independent charge-time check our R1 and MAX-CARGO reviews run could not be performed here.
The California statutory reading is our own analysis of quoted code sections, not a legal opinion, and covers one state only. Other states write their off-highway-vehicle age and certification rules differently, and this page does not claim to have screened all 51.
The New York child-passenger-age note style used on our cargo-bike reviews does not apply here — this page makes no age-law claim beyond California's own ATV-definition wording, quoted directly.
The 152 lb bike weight and 220 lb load capacity are two separate published rows rather than one figure minus another; we did not compute a "headroom" number the way our cargo-bike reviews do, because Eunorau does not publish them as a payload-minus-bike-weight pair here.
Price, colorways and stock were read on September 9, 2026 through our own Admin API, and all three move.
Expiry: re-verify if Eunorau revises the speed specification, publishes an age recommendation or a speed-limiting mode, or if a further independent test of this model becomes available.

The bottom line

The Eunorau S1 is a genuine off-road machine marketed with a "kids and teens" label that its own published numbers only partly support. The height window is real and wide — wide enough to include a pre-teen and a grown adult by US growth-chart standards — and the maker publishes no age number, no speed governor, and a claimed 43.4 mph that an independent Dragy-timed test measured at 36-37.

Buy it understanding three things. The measured top speed is meaningfully below the claim — budget for 36-37 mph, never the claimed 43.4. The published "kids and teens" fit window has real edges most riders in that description will actually hit — measure the 4'9"-5'10" height and the 27.95" saddle against your own rider — the numbers, never the name on the box. And at 152 lb this is not the lightest machine in Eunorau's own no-pedal dirt-bike range; its adult-sized R1 sibling weighs 22 lb less.

Credit where it is earned: full suspension, hydraulic discs on both wheels, a feature its own description undersells rather than oversells (the turn signals), and a clean federal safety record on a control-tested screen. That is a capable $1,699 off-road machine for the rider whose size, ground to ride on, and age are all settled first, by the parent, not by the packaging.

Buy it if your rider fits the published window and you have legal ground to use it on.

Orange or Camouflage, 25 units each, free contiguous-US shipping, ten years on the frame, warranty claims handled by us. Compare it with the R1 or see every review we've published. Still unsure on sizing? Ask us before you order.