Best Long-Range Electric Bikes UK 2026: Ranked by Real-World Distance

Updated August 2026 · Voltryv Editorial Team

Range anxiety is the single most common reason people hesitate over an electric bike — and the single easiest problem to solve at the point of purchase. Buy enough battery and it simply never comes up again.

The trouble is that "up to 150 km" on a product listing tells you almost nothing. So this ranking ignores marketing claims and sorts our bikes by watt-hours (Wh) — the only number that actually predicts distance — with realistic UK figures beside each one.

How to read these numbers

Watt-hours = battery voltage × amp-hours. A typical UK rider on mixed terrain with medium assist consumes 8-14 Wh per kilometre. So a 1,000 Wh battery delivers roughly 70-125 km depending on how you ride it. Our full e-bike range guide explains the maths and the seven factors that eat into it.

The honest rule: multiply any manufacturer's "up to" figure by 0.55-0.70 for a realistic British number, then buy about 30% more capacity than you think you need.

The ranking

1. KOOLUX X9 Pro — 1,500 Wh · £899 (Longest range we sell)

Two 48V 15.6Ah batteries totalling 31.2Ah / 1,500 Wh. The catalogue claims 100-180 km; expect 105-135 km in typical UK commuting conditions, which is still extraordinary — a week of most people's commuting per charge cycle.

The 750W motor runs in road-legal 250W EAPC mode on public roads, and there is a hidden benefit to dual batteries beyond distance: spreading the same commute across two packs means each accumulates roughly half the charge cycles, so both age more slowly.

Best for: long or unpredictable commutes, touring, couriers, anyone who wants to charge weekly rather than nightly.

2. KOOLUX BK6S PRO — 1,123 Wh · £959 (Best long-range folder)

Dual 48V batteries in a bike that folds. Realistically 80-140 km, 750W motor, hydraulic brakes and 26" Kenda rubber. If you need serious range but also have to get the bike indoors, up stairs or into a car boot, this is the compromise-free answer.

Best for: flat-dwellers and train commuters who refuse to trade range for portability.

3. KOOLUX X7 — 1,200 Wh · £979 (Best single-battery range)

The X7 takes a different route to the same destination: one enormous 48V 25Ah pack instead of two smaller ones. That means no swapping, no second charger, and one battery to look after — with a realistic 85-120 km.

It also charges fastest of anything here (5-6 hours, versus 7-8 on most), carries a 4G display with app tracking, and the step-through frame with front and rear racks makes it the most genuinely practical bike in the range. If you want distance and to carry the shopping, this is it.

Best for: riders who want maximum range with minimum faff, and anyone doing cargo or errand runs.

4. KOOLUX X11 — 1,123 Wh · £899 (Best value dual-battery)

13Ah + 10.4Ah across two packs, 500W motor, hydraulic brakes, 20" × 4.0" tyres, and it folds. Realistically 80-130 km. Sixty pounds less than the BK6S PRO for a similar battery, trading some motor power for the saving.

Best for: long commutes on a tighter budget.

5. KOOLUX KL6S — 749 Wh · £819 (Best single-battery folder)

48V 15.6Ah in a folding frame with hydraulic brakes and fat tyres. Realistically 55-95 km — comfortably a week of a 20 km round-trip commute. The sweet spot for most riders who want range without flagship money.

6. KOOLUX BK6S 750W — 624 Wh · £739 (Best power-per-pound)

A 750W motor at this price is unusual. Realistically 45-80 km, and the strong platform means hills barely register. Range is adequate rather than exceptional — pick this if climbing matters more than distance.

7. KOOLUX X9 Mini — 624 Wh · £549 (Most range per pound)

Here is the surprise of the list: the cheapest bike here carries the same battery capacity as the £739 BK6S. Realistically 45-80 km from a compact 16" machine that costs £549. If you measure value in watt-hours per pound, nothing else comes close.

At a glance

Dual battery or one big one?

The X9 Pro and X7 answer this question differently, and both answers are valid:

• Dual battery (X9 Pro, BK6S PRO, X11) — swap packs mid-ride, carry a spare, halve the cycles on each. Downsides: two things to charge and keep track of.


• One large battery (X7) — nothing to swap, nothing to forget, faster charging. Downside: when it is empty, it is empty.

If you regularly ride beyond a single pack's range, go dual. If you want the simplest possible ownership with a big margin, go X7.

Getting more from whatever you buy

Battery size is only half of it. Tyre pressure, assist level, cold weather and rider weight all move the number substantially — our maintenance guide covers the free wins, and winter riding explains why your range drops 15-25% in January and how to claw it back. Heavier riders should read our payload guide and simply size up one step.

Common questions

Which is genuinely the longest-range e-bike you sell?

The X9 Pro at 1,500 Wh — around 25% more capacity than anything else in the range.

Does a bigger battery make the bike faster?

No. Every road-legal UK e-bike assists to 15.5 mph regardless of battery size — see our speed guide. A bigger battery buys distance, not speed.

Do big batteries cost more to charge?

Proportionally, but the amounts are trivial: even the 1,500 Wh X9 Pro costs roughly 44p for a full charge at typical UK rates. Full figures in our running costs guide.

Will a big battery last as long?

Longer, in practice. Bigger packs cycle more shallowly for the same commute, and shallow cycles are exactly what extends lithium-ion life — see our battery care guide.

Stop thinking about charging

Every bike above is in UK stock with free delivery and a 2-year warranty. Browse the full range — and remember that Cycle to Work takes 28-42% off any of them.