Eunorau FLASH LITE ST Step-Thru eMoped
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Eunorau FLASH LITE ST Step-Thru eMoped
The Eunorau FLASH LITE ST is a step-thru moped-style. Eunorau rates it at a 52V 750W hub motor rated at 92 N.m, a 20 mph top speed, a manufacturer range of up to 100 miles with dual battery and a 440 lbs payload. It's listed as 1/2/3/3C/4 Default: 2, UL certified, sized for riders 4'8"–6'4", and it weighs 82 lbs. $1,899 with free shipping in the lower 48.
- 750 W92 N.m motor
- 16 AhBattery
- 100 miMfr. range
- 20 mphMfr. top speed
- 20×4.0Tires
Class, speed & certification
E-bike class
1/2/3/3C/4 Default: 2
Class rules are set by state and local law in the U.S. Check the rules where you ride — some paths and trails restrict Class 3.
Top speed
20 MPH
UL certified
Yes — as published by Eunorau. UL listing for the battery and electrical system is what many U.S. cities, insurers, and apartment buildings now ask for.
Who the FLASH LITE ST is for
Buy it if
- Riders who want a motorcycle stance with e-bike running costs
- Riders who need a UL-certified battery to charge indoors
Look elsewhere if
- Anyone wanting a light bike they can lift — these are the heavy end of the range
- Anywhere Class 3 is barred — check your local path and trail rules first
- Anyone who needs to lift the bike regularly — it weighs 82 lbs
- Buyers who want the headline range without buying the second battery
The motor
Eunorau specifies 52V 750W Rear Motor with 92 N·m Torque.
Battery and range
Battery: 52V 16Ah Standard Battery with LG Cells. Eunorau rates the range at Up to 100 Miles with Dual Battery. Real-world range moves with rider weight, terrain, temperature and throttle use.
Suspension
Front: Suspension Fork.
Brakes and tires
Brakes: Front and Rear Four-Piston Hydraulic Disc Brakes. Tires: CST 20" × 4.0" Fat Tires.
Size, fit and capacity
Eunorau publishes a total payload capacity of 440 lbs. Recommended rider height is 4'8"–6'4". The bike weighs 82 lbs.
The honest ledger
Green flags
- UL certified, per Eunorau — increasingly what US cities, insurers and apartment buildings require before an e-bike can be charged indoors
- Front suspension: Suspension Fork
- 440 lbs payload — the highest of any Eunorau we stock
- Hydraulic disc brakes with motor cut-off in the levers
Red flags
- 1/2/3/3C/4 Default: 2 is a restriction as well as a feature — many US bike paths, parks and multi-use trails bar Class 3, so check your local rules before buying
- 82 lbs is heavy — fine on the road, awkward on stairs or a car rack
- The headline range (Up to 100 Miles with Dual Battery) assumes the optional second battery, which is bought separately — the standard pack will not reach it
- Eunorau's own listing is inconsistent here: it badges this model 1/2/3/3C/4 Default: 2 but publishes a top speed of 20 MPH. Class 3 normally means 28 mph assisted in the U.S. We've asked Eunorau to resolve it and quote both rather than pick the flattering one
How the FLASH LITE ST compares
All figures below are Eunorau's own published numbers. A blank cell means Eunorau does not publish that spec for that model — left empty rather than guessed.
| Spec | FLASH LITE ST | FLASH 2.0 Mid-Drive Moto | FLASH AWD 1.0 Dual-Motor Moto |
|---|---|---|---|
| Price | $1,899 | $2,499 | $2,099 |
| Motor | 52V 750W Rear Motor with 92 N·m Torque | 52V1000W Truckrun Mid Drive Motor with 220N.m Torque | Dual 52V750W Hub Motor with dual 92N.m Torque |
| Battery | 52V 16Ah Standard Battery with LG Cells | 52V16Ah Standard (Optional: Top Tube 52V21Ah / Down Tube 52V17Ah) | 52V16Ah Standard (Optional: Top Tube 52V21Ah / Down Tube 52V17Ah) |
| Range (mfr.) | Up to 100 Miles with Dual Battery | Up to 65 Miles (135 Miles Dual Battery | 220 Miles Triple Battery) | Up to 65 Miles (135 Miles Dual Battery | 220 Miles Triple Battery) |
| Top speed (mfr.) | 20 MPH | 20 MPH | 20 MPH |
| Front suspension | Suspension Fork | ||
| Rear shock | |||
| Drivetrain | SHIMANO 8-Speed Thumb Shifter | AWD: Single Speed | |
| Tires | CST 20" × 4.0" Fat Tires | CST 20" x 4.0" | CST 20" x 4.0" |
| Payload | 440 lbs | 440 lbs | 440 lbs |
| Frame | 6061 Aluminum Alloy Step-Through Frame | Aluminum Alloy 6061 | Aluminum Alloy 6061 |
Source: each manufacturer product page on eunorau-ebike.com, pulled 2026-08-13 (source-specs_20260813.json). Blank = not published by Eunorau.
Full specifications
| Motor | 52V 750W Rear Motor with 92 N·m Torque |
| Maximum Speed | 20 MPH |
| Controller | 52V 22A Sine-Wave Controller |
| Pedal Assist | Class 1/2/3/3C/4, Default: Class 2 |
| Pedal Assist Sensor | 12-Magnet Dual-Hall Sensor |
| Throttle | Thumb Throttle |
| Battery | 52V 16Ah Standard Battery with LG Cells |
| Optional Battery | 52V 17Ah Secondary Battery |
| Range | Up to 100 Miles with Dual Battery |
| Dual-Battery System | Dual-Input Battery Switcher |
| Charger | Standard 2.0A Smart Charger |
| Battery Protection | 50A BMS with Discharge Fuse |
| Display | BC182 Bluetooth LCD Display |
| App Support | EUNORAU GO App |
| Frame | 6061 Aluminum Alloy Step-Through Frame |
| Fork | Suspension Fork |
| Fork Travel | 60mm |
| Drivetrain | Single Speed |
| Crankset | 36T Chainring with 170mm Forged Alloy Crank Arms |
| Freewheel | 18T |
| Chain | KMC |
| Bottom Bracket | Sealed Cartridge Bottom Bracket for 100mm Shell |
| Chain Tensioner | Aluminum Chain Tensioner |
| Pedals | High-Quality Aluminum Platform Pedals |
| Brakes | Front and Rear Four-Piston Hydraulic Disc Brakes |
| Brake Levers | EUNORAU Brake Levers with Motor Cut-Off Switches |
| Brake Rotors | 180mm Front and Rear |
| Wheels | 20-Inch Black Alloy Wheels |
| Tires | CST 20" × 4.0" Fat Tires |
| Tire Color | Black Tread with Brown Sidewalls |
| Inner Tubes | 20" × 4.0" with Schrader Valves |
| Rim Strips | 20" × 80mm Rubber Rim Strips |
| Handlebar | 720mm Aluminum Riser Handlebar with 215mm Rise and 9° Backsweep |
| Stem | Aluminum Stem, 40mm Extension and 10° Rise |
| Saddle | Extra-Soft Oversized Comfort Saddle |
| Front Light | Included |
| Rear Light | Included and Integrated into the Main Battery Case |
| Kickstand | Adjustable Side Kickstand |
| Wiring | Waterproof Electrical Connectors |
| Tool Kit | Included |
| Bike Weight | 82 lbs |
| Total Payload Capacity | 440 lbs |
| Recommended Rider Height | 4'8"–6'4" |
| A: Head tube length | 160mm/6.3in |
| B: Handlebar height | 108mm/42.5in |
| C: Reach | 280mm/11in |
| D: Seat height | 800mm/31.5in |
| E: Stand-Over height | 445mm/17.5in |
| F: Wheelbase | 1090mm/43in |
| G: Total length | 1740mm/68.5in |
Specifications as published by Eunorau at eunorau-ebike.com/products/flash-lite-st, verified 2026-08-13. We publish the manufacturer's figures as given and do not add specs Eunorau does not state. Found an error? Email support@redtailebikes.com.
Warranty
| Component | Coverage |
|---|---|
| Frame | 10 years |
| Battery | 24 months |
| Motor | 24 months |
| Electrical components | 24 months |
What it covers
Manufacturing defects in Eunorau's original parts and components.
Eunorau states it continues to support the product after the warranty period as a manufacturer courtesy, and may ask only for shipping costs on replacement parts.
What you must do
- You are the original purchaser — the warranty does not transfer
- Proof of purchase (your Redtail order confirmation)
- Product registration with Eunorau right after purchase
- An e-bike check-up by a Eunorau specialist or dealer after the first year of use
Not covered
- Ordinary wear and tear — brake pads, rotors, spokes, grips, shifters, brake cables and casings, tires and tubes, chains, chainrings, cassettes, transmission gears
- Labor charges for part replacement
- Corrosion from moisture or heat, and cosmetic deterioration of the finish
- Damage from accident, abuse, stunt riding, racing, improper storage, or neglect
24-Month+ Limited Warranty issued by Eunorau Bikes, a Nevada corporation. Bikes bought for commercial use — rental fleets, delivery, sharing programs — get a 50% reduced warranty period. Full terms are published by Eunorau at eunorau-ebike.com/pages/warranty. Redtail coordinates warranty claims for bikes bought from us, so send it to us rather than to Eunorau: support@redtailebikes.com.
Manuals & documentation
In the box
Eunorau's spec sheet for this model lists a printed manual and a tool kit as included.
Any other document
Eunorau publishes display, controller, shock and accessory manuals across several files. Tell us which one you need and we will send you our copy, so you are not hunting through a supplier download hub.
Eunorau publishes display and component manuals rather than a per-bike user manual. We link only the manual Eunorau lists against this exact model. Need a document we haven't linked? Email support@redtailebikes.com and we'll request it from Eunorau.
Shipping, returns & support
Shipping
Free shipping on every electric bike within the contiguous United States (lower 48).
Orders are prepared and dispatched within 1–3 business days. Most e-bikes arrive within 5–10 business days after dispatch.
Ships via UPS, FedEx, or LTL freight for larger items, with tracking emailed at dispatch. Freight deliveries may need a scheduled appointment and a signature.
On delivery
Inspect your shipment at delivery. Damage, defects, or incorrect items must be reported with photos within 48 hours.
If a bike arrives dead, won't charge, throws an error code, or has a faulty component, it is covered under the manufacturer warranty and Redtail coordinates repair or replacement remotely.
Returns
Change-of-mind returns accepted only on unopened, factory-sealed items requested within 72 hours of delivery, with a 15% restocking fee plus return shipping. Once a box is opened or a bike is ridden, it is no longer eligible.
Order cancellations carry a 3% transaction fee, because card-processing fees are non-recoverable.
Alaska, Hawaii, U.S. territories, P.O. boxes, and remote areas may incur extra charges or be excluded — contact us before ordering. Full terms: Shipping Policy · Refund & Return Policy.
Frequently asked questions
How far does the Eunorau FLASH LITE ST go on one charge?
Eunorau rates the FLASH LITE ST at Up to 100 Miles with Dual Battery. That figure assumes the optional second battery, bought separately. Manufacturer range figures are measured under favorable conditions — expect less with hills, heavy loads, cold weather or heavy throttle use.
How fast is the Eunorau FLASH LITE ST?
Eunorau publishes 20 MPH. It is listed as 1/2/3/3C/4 Default: 2. E-bike class rules and speed limits are set by state and local law in the U.S., so check the rules where you ride before you buy.
Who does the FLASH LITE ST fit, and how much can it carry?
Eunorau publishes a total payload capacity of 440 lbs. Recommended rider height is 4'8"–6'4". The bike itself weighs 82 lbs.
Is the Eunorau FLASH LITE ST UL certified?
Yes — Eunorau lists this model as UL certified. In the U.S. that increasingly determines whether you can store and charge the bike inside an apartment building, and some insurers ask for it too.
What warranty covers the Eunorau FLASH LITE ST?
Eunorau's 24-Month+ Limited Warranty: 10 years on the frame and 24 months on the battery, motor and electrical components, covering manufacturing defects. It requires registration with Eunorau after purchase, applies to the original purchaser only, and excludes wear items and labor. Redtail coordinates claims for bikes bought from us.
How does the FLASH LITE ST ship, and can I return it?
Free shipping within the contiguous U.S., dispatched in 1–3 business days and typically delivered 5–10 business days later. Inspect it at delivery — damage or defects must be reported with photos within 48 hours. Unopened change-of-mind returns are accepted within 72 hours with a 15% restocking fee plus return shipping.
Keep looking
All Eunorau e-bikes we stock · Compare the FLASH 2.0 Mid-Drive Moto eBike · Compare the FLASH AWD 1.0 Dual-Motor Moto eBike · Every e-bike brand at Redtail · Shop electric bikes by type
How we verified this page. Every specification above was read from Eunorau's own published product page on 2026-08-13 and is reproduced as Eunorau states it. Where Eunorau does not publish a figure, this page leaves it out rather than estimating. Warranty terms are Eunorau's, quoted from their warranty policy; shipping and return terms are Redtail's own. Prices are USD and current at the date shown. Corrections: support@redtailebikes.com.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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