Written by Muneeb Rana · Last updated 26 October 2026
Quick answer: The e-bike speed limit depends on where you ride. In most US states using the three-class system, Class 1 and Class 2 e-bikes stop motor assistance at 20 mph and Class 3 at 28 mph. In the EU, pedelecs must stop assisting at 25 km/h with a 250 W continuous motor. Local path rules may set lower limits.
TL;DR
- US Class 1: pedal assist to 20 mph.
- US Class 2: throttle to 20 mph.
- US Class 3: pedal assist to 28 mph.
- EU: assistance to 25 km/h, 250 W.
- Path limits may be lower.
US three-class system
| Class | Assistance | Cutoff |
|---|---|---|
| 1 | Pedal assist only | 20 mph |
| 2 | Throttle allowed | 20 mph |
| 3 | Pedal assist (often speedometer required) | 28 mph |
PeopleForBikes tracks which states adopt this system.
E-bike speed limit in Europe
EU rules treat pedal-assisted bikes as bicycles if assistance cuts out at 25 km/h and continuous power is 250 W or less. Faster 'speed pedelecs' are mopeds with extra requirements. Wikipedia's electric bicycle laws page summarises by country.
Riding faster than the cutoff
You may pedal faster than the cutoff under your own power; the motor simply stops helping. Path or road limits still apply.
Checking your speed
Many Class 3 rules require a speedometer. A phone with Speedometer PRO on a secure mount can show GPS speed; it is an estimate.
Safety
Higher speeds mean longer stopping distances; wear a helmet; see NHTSA bicycle safety.
Why the classes exist
The three-class system gives states a common way to say where each type of e-bike can ride. Class 1 and 2 bikes are often allowed where pedal bikes are, while Class 3 may be restricted on some paths. Rules differ by state and local authority.
Labels and tampering
Many US states that adopt the class system require a label showing class, top assisted speed and motor wattage. Modifying an e-bike to exceed its class limits can change its legal status and insurance position.
Why the limits matter
Speed classes exist so e-bikes can share bike lanes and paths with ordinary cycles. An e-bike that assists beyond its class limit may be legally treated as a moped or motor vehicle, needing registration, insurance or a licence, depending on where you live. Modifying ("de-restricting") an e-bike to go faster can change its legal status and void insurance. A GPS speedometer helps you see how quickly you're actually travelling, including on descents where gravity takes you past the assistance cut-off. Always check your local rules, which differ between US states, the UK and EU countries.
Related
Related: E-bike speedometer: GPS speed for e-bikes · Average cycling speed · Bike speedometer app: GPS speed for cycling · Best bike speedometer apps · The dangers of speeding · Stopping distance calculator · Speedometer use cases · Average walking speed
Get Speedometer PRO on Google Play · Download on the App Store · Set it up before you move; never handle your phone while driving.
Sources
- Electric bikes and the three-class system (PeopleForBikes): peopleforbikes.org (accessed 26 October 2026)
- Electric bicycle laws (Wikipedia): en.wikipedia.org (accessed 26 October 2026)
- Bicycle Safety (NHTSA): nhtsa.gov (accessed 26 October 2026)
FAQ
How fast can a Class 3 e-bike go?
Motor assistance stops at 28 mph. You can go faster under your own power, subject to road rules.
What is the e-bike speed limit in the UK and EU?
Pedal assistance must stop at 25 km/h (about 15.5 mph) for a bike to count as an electrically assisted pedal cycle.
Do Class 2 e-bikes have throttles?
Yes, Class 2 allows a throttle up to 20 mph.
Can I ride Class 3 on bike paths?
Rules vary; many places restrict Class 3 on multi-use paths. Check locally.
Is a phone speedometer accurate on an e-bike?
It gives a reasonable estimate in open sky; under trees readings can wander.