{"product_id":"yvy-k20-lite","title":"YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style","description":"\u003cdiv class=\"sb-flow\"\u003e\n\u003cstyle\u003e\n.sb-flow{--sb-ink:#111;--sb-sub:#555;--sb-line:#e8e8e8;--sb-accent:#c8102e;--sb-good:#0a7d3f;--sb-warn:#b3261e;font-family:inherit;color:var(--sb-ink);line-height:1.55;max-width:var(--page-width,1900px);margin:0 auto;padding-inline:clamp(0.5rem,1vw,1rem);}\n.sb-flow *{box-sizing:border-box;}\n.sb-flow h2{font-size:1.9rem;font-weight:800;letter-spacing:-.02em;margin:3.5rem 0 1rem;}\n.sb-flow h3{font-size:1.25rem;font-weight:700;margin:0 0 .6rem;}\n.sb-answer{max-width:900px;margin:0 auto 2.5rem;padding:1.5rem 1.75rem;border:1px solid var(--sb-line);border-left:4px solid var(--sb-accent);border-radius:14px;background:#fcfcfc;}\n.sb-answer p{margin:0;font-size:1.1rem;color:var(--sb-ink);}\n.sb-answer 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var(--sb-line);border-radius:14px;font-size:.9rem;color:var(--sb-sub);}\n.sb-hero{width:100%;border-radius:20px;overflow:hidden;margin:0 0 .6rem;position:relative;}\n.sb-hero img{width:100%;height:auto;display:block;}\n.sb-cap{font-size:.86rem;color:var(--sb-sub);margin:0 0 2rem;padding-left:.2rem;font-style:italic;}\n.sb-bib{margin:1rem 0 0;padding-left:1.4rem;}\n.sb-bib li{margin:.5rem 0;color:var(--sb-sub);font-size:.95rem;}\n.sb-addr{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;color:var(--sb-sub);}\n.sb-cite{font-weight:600;color:var(--sb-ink);}\n.sb-measured{margin:2rem auto;padding:1.4rem 1.6rem;border:1px solid var(--sb-line);border-left:4px solid var(--sb-good);border-radius:14px;background:#fbfdfb;}\n.sb-measured h3{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--sb-good);margin:0 0 .5rem;}\n.sb-measured p{margin:0;color:var(--sb-ink);}\n.sb-measured .sb-src{margin-top:.6rem;}\n.sb-notes{margin:1rem 0 0;padding:1.2rem 1.5rem;border:1px solid var(--sb-line);border-radius:16px;}\n.sb-notes li{margin:.5rem 0;color:var(--sb-sub);font-size:.95rem;}\n.sb-law{margin:1rem 0 0;padding:1.4rem 1.7rem;border:1px solid var(--sb-line);border-left:4px solid #444;border-radius:14px;background:#fafafa;}\n.sb-law blockquote{margin:.8rem 0;padding-left:1rem;border-left:3px solid #ccc;font-style:italic;color:var(--sb-ink);}\n.sb-law p{margin:.6rem 0;color:var(--sb-sub);}\n.sb-law .sb-stat{font-weight:700;color:var(--sb-ink);}\n@media(max-width:800px){.sb-feat,.sb-feat:nth-of-type(even){grid-template-columns:1fr;gap:1.25rem;padding:2rem 0;}.sb-feat:nth-of-type(even) .sb-feat__media{order:0;}.sb-feat__txt h3{font-size:1.6rem;}.sb-ledger,.sb-fit{grid-template-columns:1fr;}}\n\u003c\/style\u003e\n\u003cdiv class=\"sb-hero\"\u003e\u003cimg loading=\"eager\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/61jTdMTZ8LL._AC_SX679.jpg?v=1787706585\" alt=\"YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style\" width=\"1600\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cp class=\"sb-cap\"\u003eSame silhouette as the K20 for $110 less. The savings are in three specific places: the motor, the pack and the brakes.\u003c\/p\u003e\n\u003cdiv class=\"sb-answer\"\u003e\n\u003cspan class=\"sb-q\"\u003eQuick answer\u003c\/span\u003e\u003cp\u003eThe K20 Lite is the entry point to YVY's moto-style line at $659: same frame and 20x4.0 tires as the K20, with a 1000W motor, a smaller 48V 15.6Ah battery and mechanical disc brakes instead of hydraulic. YVY's own pages disagree with themselves on its range and top speed, and we print both figures below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul class=\"sb-stats\"\u003e\n\u003cli\u003e\n\u003cb\u003e1000W\u003c\/b\u003e\u003cspan\u003eMotor, as rated\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e749Wh\u003c\/b\u003e\u003cspan\u003e48V x 15.6Ah battery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e30 mi\u003c\/b\u003e\u003cspan\u003eThrottle range, claimed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e330 lb\u003c\/b\u003e\u003cspan\u003eMaximum load\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e20 x 4.0 in\u003c\/b\u003e\u003cspan\u003eFat tires\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho the K20 Lite is for\u003c\/h2\u003e\n\u003cdiv class=\"sb-fit\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eBuy it if\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe cheapest way into this frame. At $659 it is the least expensive bike YVY sells, and it shares the K20's stance, tires and seat\u003c\/li\u003e\n\u003cli\u003eShorter rides where 30 miles of throttle range is genuinely enough — commutes, errands, campground loops\u003c\/li\u003e\n\u003cli\u003eRiders who would rather put the $110 difference toward a spare battery than toward hydraulic brakes\u003c\/li\u003e\n\u003cli\u003eMixed surfaces: the 20 x 4.0 fat tires and dual suspension carry over from the more expensive bikes unchanged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eLook elsewhere if\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou want the strongest brakes in the line — this is the one K20-family bike specified with mechanical rather than hydraulic discs\u003c\/li\u003e\n\u003cli\u003eYou need YVY's numbers to agree with each other. On this model they do not: its top speed and its pedal-assist range are each published two different ways (see below)\u003c\/li\u003e\n\u003cli\u003eYou need a bike inside the federal low-speed electric bicycle definition — 1000W is above the 750W threshold in that definition\u003c\/li\u003e\n\u003cli\u003eYou need a published curb weight, or a UL 2849 \/ UL 2271 certification — YVY publishes none of the three for this bike. Its sitewide EN 15194 test report names a different model\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"sb-feat\"\u003e\n\u003cdiv class=\"sb-feat__media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/61njveeHytL._AC_SX679.jpg?v=1787706588\" alt=\"YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style — 1000W — the smallest in the line\" width=\"1600\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-feat__txt\"\u003e\n\u003cspan class=\"sb-feat__kicker\"\u003eMotor\u003c\/span\u003e\u003ch3\u003e1000W — the smallest in the line\u003c\/h3\u003e\n\u003cp\u003eYVY rates this hub at 1000W against the K20's 1500W. It is the least powerful bike they currently sell, and it is still above the 750W ceiling in the federal low-speed electric bicycle definition. If the legal classification is what you are shopping on, note that none of YVY's bikes sit inside that definition on the manufacturer's own numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-feat\"\u003e\n\u003cdiv class=\"sb-feat__media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/71BsIScbsPL._AC_SX679.jpg?v=1787706591\" alt=\"YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style — 749Wh, and YVY prints two capacities for it\" width=\"1600\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-feat__txt\"\u003e\n\u003cspan class=\"sb-feat__kicker\"\u003eBattery\u003c\/span\u003e\u003ch3\u003e749Wh, and YVY prints two capacities for it\u003c\/h3\u003e\n\u003cp\u003eThe product page says 48V 15.6Ah, which is 748.8 Wh by our arithmetic. YVY's own replacement-battery listing describes the K20MINI pack — this bike's SKU — as 48V 15Ah, which would be 720 Wh. The two figures are 4% apart and both come from YVY. We show the product page's number in the table and flag the conflict rather than picking a winner.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-feat\"\u003e\n\u003cdiv class=\"sb-feat__media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/1_873fa94b-e392-4509-9489-a018723ccd08.jpg?v=1787706580\" alt=\"YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style — Mechanical discs, not hydraulic\" width=\"1600\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-feat__txt\"\u003e\n\u003cspan class=\"sb-feat__kicker\"\u003eBrakes\u003c\/span\u003e\u003ch3\u003eMechanical discs, not hydraulic\u003c\/h3\u003e\n\u003cp\u003eThis is the substantive difference from the K20 above it. YVY specifies a dual mechanical disc system here and hydraulic dual brakes on the K20. Mechanical discs are easier to adjust at home and cheaper to service; hydraulic ones need less hand force and hold their feel better on long descents. On a bike this heavy, that trade is worth thinking about before you save the $110.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-feat\"\u003e\n\u003cdiv class=\"sb-feat__media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/5_d3c21e33-b79d-4a54-a3ba-4faeccf52b55.jpg?v=1787706600\" alt=\"YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style — 5 ft 4 in to 6 ft 2 in, 330 lb all-in\" width=\"1600\" height=\"1200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-feat__txt\"\u003e\n\u003cspan class=\"sb-feat__kicker\"\u003eFit\u003c\/span\u003e\u003ch3\u003e5 ft 4 in to 6 ft 2 in, 330 lb all-in\u003c\/h3\u003e\n\u003cp\u003eYVY's FAQ gives the same recommended height range and the same 330 lb maximum load as the K20 — unsurprising, since the frame is shared. As on every bike in this line, the 330 lb figure is total load, not rider weight, so subtract whatever you plan to carry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003ch2\u003eWhere this bike sits in US law\u003c\/h2\u003e\n\u003cdiv class=\"sb-law\"\u003e\n\u003cp\u003eBikes in this power class raise one question before any other, so here is the statute rather than a summary of it. Federal law defines the category this way:\u003c\/p\u003e\n\u003cblockquote\u003ethe term “low-speed electric bicycle” means a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.), whose maximum speed on a paved level surface, when powered solely by such a motor while ridden by an operator who weighs 170 pounds, is less than 20 mph.\u003c\/blockquote\u003e\n\u003cp class=\"sb-src\"\u003e15 U.S.C. § 2085(b) (Pub. L. 107–319, § 1, Dec. 4, 2002, 116 Stat. 2776). Retrieved 2026-08-25 from the U.S. Government Publishing Office and confirmed word for word against Cornell's Legal Information Institute the same day.\u003c\/p\u003e\n\u003cp\u003eYVY publishes this bike's motor as \u003cspan class=\"sb-stat\"\u003e1000W brushless rear hub (YVY's rating)\u003c\/span\u003e and its top speed as \u003cspan class=\"sb-stat\"\u003e28+ mph in the bullets, 30 mph in the FAQ (see notes)\u003c\/span\u003e. Set those figures against the threshold above and you can see for yourself that the manufacturer's own numbers fall outside the federal low-speed electric bicycle definition.\u003c\/p\u003e\n\u003cp\u003eWhat that means in practice is decided by your state, not by us. Many states apply moped, motor-driven cycle or off-highway vehicle rules to machines above the federal threshold, and those rules can reach registration, insurance, licensing, helmet requirements and which paths and trails you may use. Some states set their own wattage ceilings that differ from the federal one. We cannot tell you how your state treats this bike, and we are not going to guess: check before you ride on any public road, bike path or trail.\u003c\/p\u003e\n\u003cp class=\"sb-src\"\u003eStart here: \u003ca href=\"https:\/\/redtailebikes.com\/blogs\/journal\/electric-bike-laws\"\u003eour state-by-state e-bike law guide\u003c\/a\u003e. Current as of 2026-08-25; state law changes, so re-check yours before relying on it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eThe honest ledger\u003c\/h2\u003e\n\u003cdiv class=\"sb-ledger\"\u003e\n\u003cdiv class=\"sb-ledger--good\"\u003e\n\u003ch3\u003eGreen flags\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe cheapest entry to the moto frame, and the parts that matter for comfort — 20 x 4.0 tires, front fork, rear shock, the same saddle — are not what YVY cut to reach the price\u003c\/li\u003e\n\u003cli\u003eStill a removable pack, so it charges away from the bike like the more expensive models\u003c\/li\u003e\n\u003cli\u003e1000W is the lowest motor rating in YVY's current line, which makes this the closest thing they sell to a conventional e-bike, even though it is still above the federal 750W threshold\u003c\/li\u003e\n\u003cli\u003e7-speed drivetrain and a multi-function LCD carry over from the K20 rather than being downgraded\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-ledger--bad\"\u003e\n\u003ch3\u003eRed flags\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYVY's page contradicts itself on pedal-assist range: the bullets say \"up to 60-8 0 miles\" (their typo, as printed) and the FAQ on the same page says up to 50 miles. We print both and adopt neither\u003c\/li\u003e\n\u003cli\u003eIt contradicts itself on top speed too — \"28+++mph\" in the bullets, \"30 mph\" in the FAQ\u003c\/li\u003e\n\u003cli\u003eAnd its battery is published two ways across YVY's own site: 48V 15.6Ah on this product page, 48V 15Ah on YVY's replacement-battery listing for the same K20MINI variant\u003c\/li\u003e\n\u003cli\u003eCertification does not cover this bike. YVY links an EN 15194:2017 test report from every page, but that report names model FM-002\/CDDA20, a cargo electric bicycle, and no UL 2849 or UL 2271 certification is published for anything in the range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHow the K20 Lite compares\u003c\/h2\u003e\n\u003cp class=\"sb-src\"\u003eAll figures are YVY's own published specs, read from each model's archived product page on 2026-08-25. A dash means YVY publishes no figure for that model.\u003c\/p\u003e\n\u003cdiv class=\"sb-tablewrap\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eK20 Lite\u003c\/th\u003e\n\u003cth\u003eK20\u003c\/th\u003e\n\u003cth\u003eK20 Pro\u003c\/th\u003e\n\u003cth\u003eK16\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$659\u003c\/td\u003e\n\u003ctd\u003e$769\u003c\/td\u003e\n\u003ctd\u003e$1,399\u003c\/td\u003e\n\u003ctd\u003e$749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e1000W brushless rear hub\u003c\/td\u003e\n\u003ctd\u003e1500W brushless rear hub\u003c\/td\u003e\n\u003ctd\u003eDual brushless motors — wattage not published by YVY\u003c\/td\u003e\n\u003ctd\u003e1500W brushless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e48V 15.6Ah removable lithium-ion (see notes — YVY also publishes 15Ah)\u003c\/td\u003e\n\u003ctd\u003e48V 20Ah removable lithium-ion\u003c\/td\u003e\n\u003ctd\u003eTwo 52V 20Ah removable lithium-ion packs (52V 40Ah total)\u003c\/td\u003e\n\u003ctd\u003e48V 20Ah removable lithium-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery energy\u003c\/td\u003e\n\u003ctd\u003e749 Wh\u003c\/td\u003e\n\u003ctd\u003e960 Wh\u003c\/td\u003e\n\u003ctd\u003e2,080 Wh\u003c\/td\u003e\n\u003ctd\u003e960 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop speed\u003c\/td\u003e\n\u003ctd\u003e28+ mph in the bullets, 30 mph in the FAQ\u003c\/td\u003e\n\u003ctd\u003e28+ mph, as printed by YVY (\"28+++ mph\")\u003c\/td\u003e\n\u003ctd\u003e28+ mph, as printed by YVY (\"28+++ mph\")\u003c\/td\u003e\n\u003ctd\u003e28+ mph, as printed by YVY (\"28+++ mph\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange (claimed)\u003c\/td\u003e\n\u003ctd\u003eUp to 60-80 miles in the bullets, up to 50 miles in the FAQ\u003c\/td\u003e\n\u003ctd\u003eUp to 75 miles, claimed\u003c\/td\u003e\n\u003ctd\u003eUp to 180 miles, claimed\u003c\/td\u003e\n\u003ctd\u003eUp to 75 miles in the bullets, up to 50 miles in the FAQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrakes\u003c\/td\u003e\n\u003ctd\u003eDual mechanical disc\u003c\/td\u003e\n\u003ctd\u003eHydraulic dual disc\u003c\/td\u003e\n\u003ctd\u003eHydraulic dual disc\u003c\/td\u003e\n\u003ctd\u003eMechanical disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTires\u003c\/td\u003e\n\u003ctd\u003e20 x 4.0 in fat\u003c\/td\u003e\n\u003ctd\u003e20 x 4.0 in fat\u003c\/td\u003e\n\u003ctd\u003e20 x 4.0 in fat\u003c\/td\u003e\n\u003ctd\u003e16 x 4.0 in fat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum load\u003c\/td\u003e\n\u003ctd\u003e330 lb\u003c\/td\u003e\n\u003ctd\u003e330 lb\u003c\/td\u003e\n\u003ctd\u003e330 lb\u003c\/td\u003e\n\u003ctd\u003e330 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"sb-src\"\u003eSource: each model's page on yvyebike.com, archived 2026-08-25. — = not published by YVY for that model.\u003c\/p\u003e\n\u003ch2\u003eFull specifications\u003c\/h2\u003e\n\u003cdiv class=\"sb-tablewrap\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e1000W brushless rear hub (YVY's rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e48V 15.6Ah removable lithium-ion (see notes — YVY also publishes 15Ah)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery energy\u003c\/td\u003e\n\u003ctd\u003e749 Wh (our arithmetic: 48V x 15.6Ah)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging time\u003c\/td\u003e\n\u003ctd\u003eAbout 4-6 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop speed\u003c\/td\u003e\n\u003ctd\u003e28+ mph in the bullets, 30 mph in the FAQ (see notes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrottle-only range\u003c\/td\u003e\n\u003ctd\u003eUp to 30 miles, claimed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePedal-assist range\u003c\/td\u003e\n\u003ctd\u003eUp to 60-80 miles in the bullets, up to 50 miles in the FAQ (see notes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTires\u003c\/td\u003e\n\u003ctd\u003e20 x 4.0 in fat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrakes\u003c\/td\u003e\n\u003ctd\u003eDual mechanical disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension\u003c\/td\u003e\n\u003ctd\u003eFront fork and rear shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrivetrain\u003c\/td\u003e\n\u003ctd\u003e7-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiding modes\u003c\/td\u003e\n\u003ctd\u003ePure electric, pedal assist, pedal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eMulti-function LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClimb rating\u003c\/td\u003e\n\u003ctd\u003eUp to 35 degrees, claimed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater resistance\u003c\/td\u003e\n\u003ctd\u003e\"IP5\", as printed by YVY (not a complete IP code)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum load\u003c\/td\u003e\n\u003ctd\u003e330 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended rider height\u003c\/td\u003e\n\u003ctd\u003e5 ft 4 in - 6 ft 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLighting\u003c\/td\u003e\n\u003ctd\u003eLED headlight and tail light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003e7.2 in phone holder, storage box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly\u003c\/td\u003e\n\u003ctd\u003e90% pre-assembled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eNot published by YVY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eNo UL 2849 or UL 2271 certification published. YVY links an EN 15194:2017 test report sitewide, but it covers model FM-002\/CDDA20, a cargo e-bike — not this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor warranty\u003c\/td\u003e\n\u003ctd\u003e1 year (motor, battery, charger)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"sb-src\"\u003eSpecifications as published by YVY at \u003cspan class=\"sb-addr\"\u003eyvyebike.com\/products\/yvy-k20-lite-fat-tire-electric-bicycle\u003c\/span\u003e, archived 2026-08-25. YVY publishes no specification table for any of its bikes, so every figure above was read out of the copy on that page and the sentence behind each one is on file. Watt-hour totals are our arithmetic and are marked as such. Found an error? Email \u003ca href=\"mailto:support@redtailebikes.com\"\u003esupport@redtailebikes.com\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eHow to read this spec sheet\u003c\/h2\u003e\n\u003cp\u003eManufacturer pages contain marketing, and marketing sometimes disagrees with the marketing an inch below it. Rather than quietly pick numbers, here is every place YVY's own page disagrees with itself for this model, every figure it leaves out, and what we did about each:\u003c\/p\u003e\n\u003cdiv class=\"sb-notes\"\u003e\u003cul\u003e\n\u003cli\u003eThis model carries the most self-contradictions of any bike in YVY's range, so read the table with them in mind. All four are between YVY's own published figures; none is our inference.\u003c\/li\u003e\n\u003cli\u003ePedal-assist range: the bullet list says \"up to 60-8 0 miles in pedal assist mode\" — the space inside the number is YVY's typo, reproduced here as printed — while the FAQ on the same page says \"up to 50 miles in pedal assist mode\". We print both and adopt neither.\u003c\/li\u003e\n\u003cli\u003eTop speed: \"28+++mph\" in the bullets, \"30 mph\" in the FAQ. Again both are YVY's.\u003c\/li\u003e\n\u003cli\u003eBattery capacity: 48V 15.6Ah on this product page, 48V 15Ah on YVY's own replacement-battery listing for the K20MINI variant. That is a 720 Wh vs 749 Wh difference depending which page you read.\u003c\/li\u003e\n\u003cli\u003eYVY publishes no specification table for any bike. Every figure here was read out of marketing prose, and the sentence behind each is recorded in research\/yvy\/specs_20260825.json.\u003c\/li\u003e\n\u003cli\u003eThis bike is listed twice on YVY's storefront — at $659 with the SKU and ten images, and at $969 on a second listing whose description is byte-for-byte identical. A third listing at $1,199 carries different photography of the same bike. We price against the first.\u003c\/li\u003e\n\u003cli\u003eYVY links two PDFs from every page: an EN 15194:2017 test report (report ATS240329142LR, issued 2 April 2024 by Shenzhen ATS Testing Technology, for model FM-002\/CDDA20, a cargo electric bicycle) and the EUIPO trade mark certificate for \"Ridstar\". Neither covers this model. We say so rather than let a sitewide certificate imply cover it does not give.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-measured\"\u003e\n\u003ch3\u003eWhat we counted\u003c\/h3\u003e\n\u003cp\u003eWe pulled YVY's entire live catalogue on 2026-08-25 — all \u003cstrong\u003e46 published listings\u003c\/strong\u003e — and worked out what is actually on sale. Of \u003cstrong\u003e13 bike listings, only 7 are distinct bikes\u003c\/strong\u003e: 6 are the same machines listed a second time, which we proved from byte-identical descriptions, shared image files and, in three cases, by opening the photographs. Six of the thirteen bike listings are the same bikes listed twice — proven by byte-identical descriptions, shared image files, and in three cases by opening the photographs. The duplicates are priced $30–$550 above the merchandised listing of the same bike. We list one page per bike, priced against the listing YVY actually merchandises.\u003c\/p\u003e\n\u003cp class=\"sb-src\"\u003eRedtail original analysis, counted from YVY's public storefront feed and collection endpoints on 2026-08-25; every price cross-checked against a second, independently fetched endpoint (46 of 46 listings agree across two independently fetched endpoints). Availability moves; email \u003ca href=\"mailto:support@redtailebikes.com\"\u003esupport@redtailebikes.com\u003c\/a\u003e for anything not shown here.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cdiv class=\"sb-tablewrap\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e1 year from the original owner's receipt or purchase date, whichever is later\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e1 year from the original owner's receipt or purchase date, whichever is later\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003e1 year from the original owner's receipt or purchase date, whichever is later\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame and other components\u003c\/td\u003e\n\u003ctd\u003eNot separately stated in YVY's published warranty terms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInbound and outbound repair shipping\u003c\/td\u003e\n\u003ctd\u003eCovered by YVY inside the warranty period\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-cards\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWhat it covers\u003c\/h3\u003e\n\u003cp\u003eDefects in hardware or firmware under regular use during the warranty period. YVY states it will repair or replace, at no charge, a product or part that proves defective because of hardware malfunction under regular use and maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWhat you must do\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKeep proof of purchase — YVY excludes claims with no associated purchasing proof, invoice or receipt\u003c\/li\u003e\n\u003cli\u003eReport the fault inside the 1-year window; YVY dates coverage from receipt or purchase, whichever is later\u003c\/li\u003e\n\u003cli\u003eKeep the original packaging for a period after delivery, which YVY asks for directly in its product listings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eNot covered\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConditions, malfunctions or damage not resulting from defects in hardware or firmware\u003c\/li\u003e\n\u003cli\u003eClaims with no purchase proof, invoice or receipt, and no authorised dealer confirmation\u003c\/li\u003e\n\u003cli\u003eReturn shipping when the product is found to have no quality issue, or is confirmed working by YVY's after-sales engineers\u003c\/li\u003e\n\u003cli\u003eFaults reported after the warranty period, which YVY offers to resolve at material cost instead\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"sb-src\"\u003eYVY Limited Warranty issued by YVY Bikes, as published on its \u003cspan class=\"sb-cite\"\u003ewarranty page\u003c\/span\u003e. One caveat worth knowing: that page lists its “Warranted Products” as the Q20, Upgraded Q20 and Q20Pro — model names that do not appear on YVY's current storefront. The 1-year motor, battery and charger term above is therefore taken from this bike's own product listing, which states it directly. File with Redtail, not with the manufacturer: we are the merchant of record on this order and we open and carry the warranty claim on your behalf.\u003c\/p\u003e\n\u003ch2\u003eShipping, returns \u0026amp; support\u003c\/h2\u003e\n\u003cdiv class=\"sb-cards\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eFree shipping on every electric bike within the contiguous United States (lower 48).\u003c\/p\u003e\n\u003cp\u003eOrders are prepared and dispatched within 1–3 business days. Most e-bikes arrive within 5–10 business days after dispatch, depending on location.\u003c\/p\u003e\n\u003cp\u003eShips via trusted parcel and freight carriers — UPS, FedEx, and LTL freight for larger items — with tracking emailed at dispatch.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eOn delivery\u003c\/h3\u003e\n\u003cp\u003eInspect your shipment at delivery. Damage, defects, or incorrect items must be reported with photos within 48 hours; claims submitted after this window are not accepted.\u003c\/p\u003e\n\u003cp\u003eBikes with power, charging, or component issues are covered under the manufacturer warranty; Redtail coordinates repair or replacement remotely at no cost to the customer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cp\u003eChange-of-mind returns accepted only on unopened, factory-sealed items requested within 72 hours (3 days) 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.\u003c\/p\u003e\n\u003cp\u003eOrder cancellations carry a 3% transaction fee, because card-processing fees are non-recoverable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"sb-src\"\u003eAlaska, Hawaii, U.S. territories, P.O. boxes, and remote areas may incur extra charges or be excluded — contact us before ordering. Full terms: \u003ca href=\"https:\/\/redtailebikes.com\/pages\/shipping-policy\"\u003eRedtail Shipping Policy\u003c\/a\u003e · \u003ca href=\"https:\/\/redtailebikes.com\/pages\/refund-policy\"\u003eRedtail Refund \u0026amp; Return Policy\u003c\/a\u003e. YVY publishes its own \u003cspan class=\"sb-cite\"\u003eshipping\u003c\/span\u003e and \u003cspan class=\"sb-cite\"\u003ereturn\u003c\/span\u003e terms, which apply to orders placed directly with YVY, not to orders placed here.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdiv class=\"sb-faq\"\u003e\n\u003cdetails open\u003e\u003csummary\u003eWhat is the YVY K20 Lite's top speed?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eYVY publishes two different answers on the same page: \"28+++mph\" in the product bullets and \"30 mph\" in the FAQ underneath them. We are not going to pick one for you — both are the manufacturer's own figures, neither is a measured result, and real speed depends on rider weight, terrain and charge. Whichever figure is right, it is well above the 20 mph motor-only speed in the federal low-speed electric bicycle definition.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow far can the K20 Lite actually go on one charge?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eYVY claims up to 30 miles on throttle alone. For pedal assist it publishes two figures on the same page — \"up to 60-8 0 miles\" in the bullets and \"up to 50 miles\" in the FAQ. The honest measure is the pack: 48V x 15.6Ah is about 749 Wh, roughly 22% less energy than the K20's 960 Wh, so expect proportionally less range than that bike under the same conditions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs a 1000W electric bike street legal?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eThat depends on your state, and the federal definition is the starting point. 15 U.S.C. 2085(b) defines a \"low-speed electric bicycle\" as having \"an electric motor of less than 750 watts (1 h.p.)\" and a motor-only top speed under 20 mph for a 170 lb rider. At YVY's rated 1000W this bike is above that threshold, which leads many states to treat such a vehicle under moped or off-highway rules. Check your own state's rules before riding on a road or bike path.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between the K20 Lite and the K20?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eThree things, and the frame is not one of them. The K20 has a 1500W motor against the Lite's 1000W; a 48V 20Ah pack (960 Wh) against 48V 15.6Ah (749 Wh); and hydraulic dual brakes against the Lite's mechanical discs. Tires, suspension, drivetrain, display, rider-height range and the 330 lb load ceiling are the same on both. The K20 costs $110 more.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat height and weight does the K20 Lite fit?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eYVY's FAQ recommends a rider height of 5 ft 4 in to 6 ft 2 in and gives a 330 lb maximum load. The load figure is everything the bike carries — rider, clothing, bags — not rider weight alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat battery does the K20 Lite use, and can I buy a spare?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eA removable lithium-ion pack that YVY publishes as 48V 15.6Ah on this product page and as 48V 15Ah on its own replacement-battery listing for the same K20MINI variant. If you are buying a spare, quote the K20MINI variant rather than a capacity, because the capacity is exactly the figure their two pages disagree about.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long does the K20 Lite take to charge?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eYVY states about 4 to 6 hours for a full charge. The pack is removable, so it can charge indoors while the bike stays where it is parked.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy does the K20 Lite have fat tires?\u003c\/summary\u003e\u003cp class=\"sb-a\"\u003eThe 20 x 4.0 in tires run lower pressure than standard tires, which widens the contact patch and adds grip on sand, gravel, snow and broken pavement, while soaking up small impacts. The cost is rolling resistance and weight — fat tires are slower on smooth tarmac, which matters more on the Lite's smaller motor than on the K20.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003ch2\u003eKeep looking\u003c\/h2\u003e\n\u003cp\u003e\n\u003ca href=\"\/collections\/yvy\"\u003eEvery YVY at Redtail\u003c\/a\u003e  ·  \u003ca href=\"\/products\/yvy-k20\"\u003eCompare the K20\u003c\/a\u003e  ·  \u003ca href=\"\/products\/yvy-k20-pro\"\u003eCompare the K20 Pro\u003c\/a\u003e  ·  \u003ca href=\"\/products\/yvy-k16\"\u003eCompare the K16\u003c\/a\u003e  ·  \u003ca href=\"\/blogs\/journal\/electric-bike-laws\"\u003eE-bike laws in your state\u003c\/a\u003e  ·  \u003ca href=\"\/pages\/shop-ebikes\"\u003eShop electric bikes by type\u003c\/a\u003e\n\u003c\/p\u003e\n\u003ch2\u003ePrimary sources\u003c\/h2\u003e\n\u003col class=\"sb-bib\"\u003e\n\u003cli\u003eYVY product page: YVY K20 Lite Fat Tire Electric Bike, 1000W Moto-Style \u003cspan class=\"sb-addr\"\u003eyvyebike.com\/products\/yvy-k20-lite-fat-tire-electric-bicycle\u003c\/span\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003eYVY Ebike Warranty \u003cspan class=\"sb-addr\"\u003eyvyebike.com\/pages\/ebike-warranty\u003c\/span\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003eYVY Company Address page \u003cspan class=\"sb-addr\"\u003eyvyebike.com\/pages\/company-address\u003c\/span\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003eYVY Shipping Policy \u003cspan class=\"sb-addr\"\u003eyvyebike.com\/pages\/shipping-policy\u003c\/span\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003eYVY Return \u0026amp; Refund Policy \u003cspan class=\"sb-addr\"\u003eyvyebike.com\/pages\/return-refund-policy\u003c\/span\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003e15 U.S.C. § 2085, Low-speed electric bicycles \u003cspan class=\"sb-addr\"\u003euscode.house.gov — 15 U.S.C. § 2085\u003c\/span\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/redtailebikes.com\/pages\/shipping-policy\"\u003eRedtail Shipping Policy\u003c\/a\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/redtailebikes.com\/pages\/refund-policy\"\u003eRedtail Refund \u0026amp; Return Policy\u003c\/a\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/redtailebikes.com\/blogs\/journal\/electric-bike-laws\"\u003eRedtail's state-by-state e-bike law guide\u003c\/a\u003e. Retrieved 2026-08-25.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"sb-src\"\u003eSpecifications and prices are YVY's own, reproduced as published from the archived copy of its product page, with contradictions in its copy flagged rather than resolved silently. The federal definition is quoted from the statute itself and was retrieved twice, independently, from the U.S. Government Publishing Office and Cornell's Legal Information Institute. Warranty terms are YVY's; shipping and return terms on this page are Redtail's. Manufacturer sources are cited by name and address rather than linked, because every link on this page should keep you here. Want to see any source we used? Email \u003ca href=\"mailto:support@redtailebikes.com\"\u003esupport@redtailebikes.com\u003c\/a\u003e and we'll send it.\u003c\/p\u003e\n\u003cp class=\"sb-note\"\u003e\u003cstrong\u003eHow we verified this page.\u003c\/strong\u003e Every specification above was read from an archived copy of YVY's own product page (\u003cspan class=\"sb-addr\"\u003eyvyebike.com\/products\/yvy-k20-lite-fat-tire-electric-bicycle\u003c\/span\u003e), retrieved 2026-08-25, with the price cross-checked the same day against a second, independently fetched YVY endpoint. Figures are the manufacturer's ratings, not our test results; where YVY's page disagrees with itself, or leaves a specification out, the “How to read this spec sheet” section names it and says what we did. The federal definition is quoted from the statute and was retrieved from two independent publishers. Prices are USD, matched to YVY's own storefront, current at the date shown. Corrections: \u003ca href=\"mailto:support@redtailebikes.com\"\u003esupport@redtailebikes.com\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"YVY","offers":[{"title":"Default Title","offer_id":53819658764571,"sku":"K20MINI","price":659.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1032\/8847\/1835\/files\/61jTdMTZ8LL._AC_SX679.jpg?v=1787706585","url":"https:\/\/redtailebikes.com\/products\/yvy-k20-lite","provider":"Redtail Ebikes","version":"1.0","type":"link"}