E-bike vs moped: where the law draws the line

Where the line is

An electrically assisted pedal cycle (EAPC) must have pedals that can propel it, a motor with a maximum continuous rated power of 250 W, and assistance that stops at 15.5 mph. The motor should only help while you pedal, apart from a start or walk assist up to 6 km/h. The rider must be 14 or over.

gov.uk says an electric bike that does not meet these rules is classed as a motorcycle or moped. That includes bikes with high-power motors, derestricted controllers and twist-and-go throttles, even if they have pedals and look like bicycles.

Note:This page is general information, not legal advice. Licence categories and age rules for mopeds are set out on gov.uk; check there for the rules in force.

Lookalikes: e-bikes that are really mopeds

Many online listings describe bikes with 750 W or 1000 W motors, a twist throttle and a top speed of 25 to 30 mph as e-bikes. In law these are mopeds or motorcycles. Very few have the type approval needed for registration, so they cannot be made road legal. Riding one on the road risks penalties for no insurance and no licence, and police can seize vehicles used without insurance.

Our off-road only e-bikes guide explains what those listings mean, and our throttle rules guide covers the 6 km/h allowance.

Speed and effort

On an e-bike you always pedal, and the motor tops out at 15.5 mph. Many riders cruise a little above that on the flat under their own power. A moped is ridden with a twist grip and no pedalling, and keeps up with slower traffic on town roads. If you need to cover long distances on fast roads every day, a moped or motorcycle may suit better. For mixed town journeys of a few miles, an e-bike is often as quick door to door because you can use cycle routes and park close to the destination.

Running and ownership

An e-bike needs no tax, registration, MOT or insurance, and its charge uses a small amount of electricity. Our battery and charge cost tool works out pence per charge from your electricity rate. A moped brings insurance, licensing, tax where it applies, protective kit and, for petrol models, fuel and engine servicing.

E-bikes do need care: chain, brakes and tyres wear, and batteries lose capacity over the years. Locks matter for both; see our e-bike lock guide.

Who should choose which

Choose an e-bike if you want to ride without a licence, use cycle lanes and paths, get some exercise and keep running costs low. A 250 W bike with a good range covers most commutes; see our electric hybrid bikes guide and long range e-bikes guide.

Choose a moped or electric motorcycle if you want powered travel without pedalling, need to keep up with traffic on faster roads, and are happy to get the right licence, insurance and helmet. Buy one that is type approved and registered, not a high-power bike sold as off-road only.

Compare 250 W commuter e-bikes →

Frequently asked questions

Is a 750 W e-bike a moped in the UK? Yes, in effect. Over 250 W continuous rated power, it is not an EAPC and is treated as a motor vehicle.

Do I need a licence for an e-bike? Not for an EAPC. You need to be 14 or over.

Can I register a high-power e-bike as a moped? Only if it has the right type approval, which most online bikes do not.

Can I ride an EAPC on a bus lane? Where signs allow cycles in a bus lane, yes, as for any bicycle. Follow the signs and the Highway Code.