Does my e-bike need an ECE-R75 tyre?

Only if it is a speed pedelec or otherwise outside the EAPC rules. A standard 250W bike assisted to 15.5mph does not.

Is E-50 better than E-25?

Not better, approved to a higher speed. If your bike does not go that fast the extra certification buys you nothing.

Can I use a normal bicycle tyre on an e-bike?

On a standard assisted bike, legally yes. It will wear faster and is more likely to fail at the sidewall, which is why e-bike casings exist.

ECE-R75, E-25 and E-50: what the e-bike tyre ratings mean

ECE-R75 is a United Nations vehicle regulation that a tyre can be certified against for use on an e-bike at up to 50 km/h. Continental writes it as e25 and e50, where the number is the approved speed. In the UK an EAPC is limited to 250W and assistance to 15.5mph. An ordinary pedelec does not legally need a certified tyre. A faster machine does, and that is the whole practical point of the marking.

Why bicycle tyres got a moped regulation

In Europe the faster class of electric bike is regulated much like a moped, and moped tyres are covered by ECE-R75. So the certification a fast e-bike tyre carries is a motorcycle standard rather than a bicycle one, tested for the heat, the torque and the cornering loads that a motor puts through a casing.

Manufacturers who already built moped tyres had a hundred years of relevant work to draw on, which is why Continental and Schwalbe were early and confident here.

What it actually means for you

A UK electric bike that meets the EAPC rules, meaning a motor of no more than 250W continuous rated power with assistance cutting out at 15.5mph, has no legal tyre requirement at all. Any good bicycle tyre is lawful on it. Above those limits the machine is a moped in law: it needs type approval, registration, tax, a licence and a helmet, and it needs tyres certified for the speed. That is where ECE-R75 stops being a nice-to-have.

What the certification does not mean

It is not a puncture rating. A certified tyre may be no more puncture resistant than an uncertified one; those are separate properties sold under separate names.

It is not a quality grade. Plenty of excellent e-bike tyres carry no certification at all, because they are sold for bikes that do not need one.

It is not a substitute for reading the load and pressure range on the sidewall, which is the thing that actually matters on a loaded cargo bike.

The thing that genuinely matters on a normal e-bike

Casing. A motor and a battery add between seven and fifteen kilos to a bicycle, and they apply torque a rider's legs cannot. What fails first is not the tread, it is the sidewall and the bead.

Manufacturers name their heavier casings rather than certifying them: Maxxis calls its e-bike casing DoubleDown, Schwalbe pairs SmartGuard with extra carcass layers in the Marathon E-Plus, and Vittoria and Pirelli build e-bike specific casings into their touring ranges.

If you are buying for an ordinary assisted bike, buy the casing. If you are buying for a fast one, buy the certification and then the casing.

Common questions

Does my e-bike need an ECE-R75 tyre?: Only if it is a speed pedelec or otherwise outside the EAPC rules. A standard 250W bike assisted to 15.5mph does not.
Is E-50 better than E-25?: Not better, approved to a higher speed. If your bike does not go that fast the extra certification buys you nothing.
Can I use a normal bicycle tyre on an e-bike?: On a standard assisted bike, legally yes. It will wear faster and is more likely to fail at the sidewall, which is why e-bike casings exist.

Last checked 2026-09-22. Where this page and your own vehicle disagree, the vehicle wins.