An electric bike is legal in Britain only inside three numbers: a motor with a continuous rated power of no more than 250W, assistance that cuts out at 15.5mph, and pedals that actually propel it — the GOV.UK EAPC rules, read 16 October 2026. Fall outside them and the law reclassifies your bicycle as a moped: registration, driving licence, motorcycle helmet, insurance, and a possible seizure if you skip any of it.
So we read the top twenty Amazon UK electric bike listings on 16 October 2026, titles and feature bullets, expecting the amp-and-watt inflation we have found everywhere else this week. The opposite: 18 of 20 state exactly 250W and not one claims more — the only aisle we have audited where the big number has disappeared, because here the big number is illegal. The inflation has simply moved house. It now lives in the range column, where claims run to 120km from the smallest battery on the page, with no stated assist level, rider weight or terrain behind any of them.
The short answer
- Best stated-numbers package: HEADEER BK1350 (£407.55) — 250W, 15.5mph, and a full 48V 15Ah battery spec, which prices its claimed 62 miles at 0.3p a mile in electricity.
- The one that leads with the law: GB1 27.5" (£599.99) — "Road-Legal" is in its title, 250W and 25km/h in its bullets.
- Folding commuter: URLIFE 16" (£479.99, 48V 13Ah, 100km claimed).
- Cheapest with a full battery spec: 14" folder (£319.99, 48V 15Ah).
- The warning in the results: an £850 "electric dirt bike for teens" sits in the same twenty with a throttle, a 53-mile range — and no stated motor power or assist limit at all. By the GOV.UK tests, a machine outside the EAPC rules is a moped in law, whatever aisle it is sold in.
Prices are the Amazon buy box on 16 October 2026 and will move. No lab, no test rides: every figure comes from the maker, the listing or a named source, read on the date shown.
Prices and specs last checked by Look Into on 16 October 2026 · next check 11 December 2026 · how we picked
What twenty listings state, against the law's three numbers
Titles and feature bullets, top twenty Amazon UK electric bike results, 16 October 2026, read against the GOV.UK EAPC rules:
- 18 of 20 state 250W; 0 of 20 claim more. After a week of auditing 9,000A jump starters and 1,500W £60 mixers, this is what an aisle looks like when a number has legal consequences: everyone recites it. Reciting is not proving — "continuous rated" is doing silent work in several of those bullets — but the arms race is gone.
- 15 of 20 state the 15.5mph / 25km/h cut-off. Five sell an electric bike in Britain without mentioning the one speed that defines it.
- 3 of 20 mention a throttle. GOV.UK is specific here: throttle-only propulsion to 15.5mph is legal only on a type-approved machine, and none of the three mentions approval. If the throttle moves the bike without pedalling and there is no approval number on the frame, it is not an EAPC.
- 2 of 20 state no motor power at all — one of them the £850 teen "dirt bike" above. The law requires an EAPC to be marked with its continuous rated power and maker, so a listing that cannot name a wattage is telling you which side of the line it lives on.
- The range column is the new watt column. 17 of 20 claim a range, and the claims refuse to reconcile with each other's batteries: one bike claims 120km from a 468Wh battery (3.9Wh per claimed km) while another claims 62 miles from 720Wh (7.2Wh per km). By their own printed numbers, one maker is promising nearly double the efficiency of another from the same physics — and not one listing states the assist level, rider weight or terrain its figure assumes.
How we chose
Desk research, not a test ride. A pick had to state the two legal numbers (250W and the assist cut-off) in its own listing, and we favoured bikes that also print a full battery spec, because volts times amp-hours is what lets you check the range story and price a charge. Throttles without a stated approval, and machines with no stated power, were excluded — not as bad bikes, but as bikes whose listings fail the only test that matters here.
The six picks
1. HEADEER BK1350 — best stated-numbers package
£407.55 on 16 Oct 2026 · 250W stated · 15.5mph stated · 48V 15Ah (720Wh) stated · 62 miles claimed
The fullest honest spec sheet in the twenty: both legal numbers, a complete battery spec, and a range claim whose arithmetic (7.2Wh per claimed km) is the most conservative on the page — which is the direction honesty points. A full charge is about 19p at the October cap; its claimed range prices at 0.3p a mile.
The catch: the conservative range claim is still a claim — no assist level or rider weight is stated behind it.
2. GB1 27.5" — the one that leads with the law
£599.99 on 16 Oct 2026 · "Road-Legal" in the title · 250W stated · 25km/h stated · walk-assist
The only listing in the twenty that makes legality its headline — which, in an aisle where the law decides what the product even is, is the right thing to sell on.
The catch: its bullets state no battery voltage or amp-hours, so its range story cannot be checked the way the HEADEER's can.
3. URLIFE 16" folding — the checkable commuter
£479.99 on 16 Oct 2026 · 250W stated · 25km/h stated · 48V 13Ah (624Wh) removable battery · 100km claimed
A folder with the full battery spec printed and the battery removable for flat-dwellers who charge indoors. About 16p a charge; 0.26p per claimed mile.
The catch: 6.2Wh per claimed km is an optimistic ask of a 624Wh pack — budget for the lower assist levels if you want the three-figure range.
4. Finbike M50 — the range-claim case study
£489.99 on 16 Oct 2026 · 250W stated · 25km/h stated · 36V 13Ah (468Wh) · 120km claimed
Both legal numbers stated, a full battery spec, seven gears, a sensible commuter shape.
The catch: 120km from 468Wh is 3.9Wh per claimed kilometre — the boldest efficiency promise in the twenty, made from the smallest battery among our picks. Buy it as a good bike with a marketing range, and halve the number in your head.
5. 29" electric mountain bike — the biggest battery
£599.00 on 16 Oct 2026 · 250W stated · 15.5mph stated · 48V 18.6Ah (893Wh) — the largest here
The most watt-hours on the page by a third, which is the one spec money genuinely buys in this category: real range comes from the battery, not the range claim.
The catch: the bullets mention a throttle. GOV.UK allows throttle-to-15.5mph only on type-approved machines, and the listing states no approval — ask the seller for the approval number before road use, or treat the throttle as a feature you must not need.
6. 14" folding e-bike — the cheapest with a full battery spec
£319.99 on 16 Oct 2026 · 250W stated · 48V 15Ah (720Wh) stated
The least money in the twenty that still buys a stated 250W motor and a fully specified 720Wh battery — on paper, the same energy as the HEADEER for £88 less.
The catch: no assist cut-off stated in its bullets, and no range claim at all — refreshingly free of marketing, but you are left to assume the legal limiter rather than read it.
Compare the picks
The live table pulls prices from Amazon's product feed, which can sit off the buy box you pay; the prices in the cards above are the buy box as read on 16 October 2026.
Prices in this table come live from Amazon and can change through the day. Prices quoted in the text were checked by Look Into on 16 October 2026, so the two can differ.
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What a charge costs, by each listing's own numbers
Volts times amp-hours gives the battery's watt-hours; at the October 2026 cap's 26.32p/kWh unit rate, a full charge from empty costs, before charger losses:
| Bike | Stated battery | Cost per full charge | Claimed range | Pence per claimed mile | Wh per claimed km |
|---|---|---|---|---|---|
| HEADEER BK1350 | 48V 15Ah (720Wh) | 19.0p | 62 miles | 0.31p | 7.2 |
| URLIFE 16" folding | 48V 13Ah (624Wh) | 16.4p | 100km (62mi) | 0.26p | 6.2 |
| Finbike M50 | 36V 13Ah (468Wh) | 12.3p | 120km (75mi) | 0.17p | 3.9 |
| 29" mountain bike | 48V 18.6Ah (893Wh) | 23.5p | not stated with units we could price | — | — |
| 14" folding | 48V 15Ah (720Wh) | 19.0p | none claimed | — | — |
| GB1 27.5" | not stated | — | — | — | — |
Read the last column as a credibility score in reverse: the lower the watt-hours per claimed kilometre, the harder the claim is working. Even on the most conservative figures here, an e-bike moves you for under a third of a penny per mile — the honest headline this aisle could run and doesn't.
Who should skip these e-bikes
- Anyone tempted by the throttle machines and "dirt bikes" in the same search results. Off the EAPC rules, the law does not see a bicycle: it sees an unregistered, uninsured moped, with the fines and seizure powers that follow. Off-road use on private land with permission is the only home for them.
- Riders under 14 — the legal floor for any EAPC, per GOV.UK.
- If a 120km range claim is the reason you're paying more: the battery's watt-hours are the spec you are actually buying. Two picks here print the same 720Wh at prices £88 apart.
After dark the law has one more requirement this page can help with: our bike lights guide covers the rechargeable sets and the reflector rule most guides skip.