High speed electric bikes are changing the way people commute and explore. Offering faster travel, less effort, and a serious boost in fun, these powerful e-bikes are becoming increasingly popular — but how fast is “too fast” in the UK?
In this article, we’ll explain what qualifies as a high speed electric bike, how UK laws apply, which models perform best, and what to consider if you want a faster ride.
What Is a High Speed Electric Bike?
In general, a “high speed” electric bike refers to one that:
Has a motor more powerful than 250W, and/or
Can exceed 25 km/h (15.5 mph) using motor assistance
These bikes go beyond the standard electric bikes defined by UK and EU laws and often fall into the category of speed pedelecs or electric mopeds.
UK Laws on Electric Bike Speed
In the UK, electric bikes that meet the EAPC (Electrically Assisted Pedal Cycles) regulations must:
Have a motor of no more than 250W
Provide assistance only while the rider is pedalling
Cut motor assistance at 15.5mph (25km/h)
If your e-bike exceeds these limits, it is not legally classified as a bicycle — and instead is considered a motor vehicle. This means:
You must register it with the DVLA
It requires number plates and insurance
You must wear a motorcycle helmet
The rider needs a valid driving licence
So if you’re in the UK and want a truly high speed e-bike, be prepared to follow the same rules as for mopeds or scooters.
Are There Legal Ways to Ride Faster?
Yes, but with limitations. Here are a few options:
Downhill coasting or unassisted pedalling can take you above 15.5 mph legally
Some bikes include an “off-road” mode, limited to private land use
Speed pedelecs (up to 28 mph or 45 km/h) are legal, but require full vehicle compliance
Important: Modifying a standard 250W e-bike to go faster on public roads is illegal in the UK and could result in fines, vehicle seizure, or voided insurance.
Who Are High Speed E-Bikes For?
Rural commuters with long distances between towns
Experienced cyclists who want a faster, powered ride
Delivery riders or professionals working across zones
Private land users (farms, estates, parks)
If you plan to ride only on private property, speed restrictions don’t apply — but most people will still benefit from a compliant, 250W e-bike on UK roads.
Best High Speed E-Bike Alternatives (Legal in the UK)
While true speed pedelecs are rare in the UK, many standard 250W e-bikes are engineered for speed and efficiency within legal limits. Some top-performing models include:
1. HITWAY BK6 City E-Bike
250W rear hub motor
36V 12Ah battery (up to 80km range)
Lightweight Dutch-style frame
Perfect for zippy commuting under UK legal limits
2. Raleigh Centros
Bosch Performance Line motor
Step-through frame and smooth power delivery
UK road legal with fast acceleration
3. Cube Touring Hybrid Pro
Bosch mid-drive system
Designed for speed and long-distance touring
Legal, high-efficiency power up to 25km/h
These bikes keep you within the law while delivering a fast, confident ride.
Safety Tips for Faster Electric Riding
Always wear a helmet, even if not legally required
Use high-visibility clothing and daytime lights
Check your brakes and tyres regularly — speed increases wear
Obey traffic rules — especially in shared cycle paths or urban zones
A faster e-bike demands more attention to safety, even if it’s still legally an EAPC.
Speed Pedelecs in the UK: Worth It?
Speed pedelecs — e-bikes with motor assistance up to 28mph (45km/h) — are common in mainland Europe, but rare in the UK due to:
Legal complexity
DVLA registration hassle
Insurance requirements
Limited infrastructure support
They are technically allowed if registered as mopeds, but in most cases, a high-spec 250W bike is the smarter, simpler solution for UK riders.
Final Thoughts: Go Fast, Go Smart
High speed electric bikes offer real appeal for UK commuters and leisure riders — but it’s essential to understand the rules. If you’re after a fast, road-legal ride, a well-designed 250W e-bike from a reputable brand like HITWAY, Raleigh, or Cube can provide everything you need.
Want to go beyond 25km/h with motor power? Make sure you’re prepared for licensing, insurance, and the legal responsibility that comes with it.
For most riders in 2025, the best electric bike is the one that balances speed, comfort, and legality — and gets you there with a smile.