Surge in Illegally Modified E-Bikes Sparks Fresh Safety Warnings
New figures suggest a marked rise over the past twelve months in the number of commuters caught riding what amount to illegally modified electric motorbikes disguised as standard e-bikes. These machines, often stripped of speed limiters or fitted with oversized motors, breach the legal definition of an Electrically Assisted Pedal Cycle (EAPC), which caps motor output at 250W and assistance at 15.5mph.
Industry watchers say the trend reflects a persistent gap in consumer understanding, with many buyers unaware – or wilfully ignoring – that derestricting a motor, or purchasing a pre-modified machine online, turns a legal EAPC into an unregistered, uninsured motor vehicle in the eyes of the law. Riders caught using such bikes on public roads or cycle paths risk seizure, fines, and prosecution, since these machines technically require an MOT, road tax, insurance and a valid licence to be used legally – none of which owners typically hold.
Retailers and campaign groups have repeatedly called for clearer point-of-sale information and tighter policing of online marketplaces where derestricted kits and pre-tuned bikes are readily available. Police forces in several UK cities have stepped up enforcement drives this year, impounding growing numbers of these faster, heavier machines, particularly among delivery riders and commuters seeking a competitive edge over congested city routes.
For On Track readers, the distinction matters. As illegally modified e-bikes attract negative headlines and heavier scrutiny, genuine e-bike commuters and legitimate assisted cyclists risk being tarred with the same brush, facing increased suspicion from other road users and potentially tighter blanket regulation. Staying within the legal EAPC limits isn’t just about avoiding a fine – it’s about protecting the reputation and freedoms of the wider cycling community.
More from e-bikes on On Track Magazine.
Reported from an announcement by Cycling Industry News. Read the original.





