The debate about illegal electric bikes in the UK keeps getting muddled with arguments about dockless hire schemes and red-light-jumping cyclists, and that confusion is doing real damage to public policy. The two things are not the same problem. Treating them as one is how we end up with rail companies contemplating bans on all ebikes because of fires caused by the poorly assembled batteries on unregistered electric motorbikes.
What the Law Actually Says About Illegal Electric Bikes UK
The distinction matters enormously, and it begins with a definition. Under GOV.UK’s rules on riding an electric bike, a machine qualifies as a legal electrically assisted pedal cycle only if its motor is rated at no more than 250 watts, its powered speed is capped at 15.5mph, and it cannot be propelled by a throttle alone. Exceed any of those parameters and the machine is legally a motorcycle or moped: it requires registration, insurance, taxation, and a licence.
Plenty of machines on British streets fail all three tests. They have pedals, yes, and they look roughly like bicycles. But they are throttle-driven, often moped-weight, and capable of travelling well beyond 30mph in silence. These are not ebikes that broke the rules. They were never ebikes at all.
Transport for London’s e-bike safety guidance points to another layer of the problem: riders who modify standard, compliant machines using hardware dongles that trick the motor controller into thinking the bike is travelling slower than it is, or by fitting a full-speed twist-and-go throttle. Either modification immediately renders the bike illegal on public roads. The machine looks identical to a legal one. Enforcement becomes correspondingly harder.
The Scale of the Crackdown, and Why It Is Not Enough
Police forces are seizing these machines in growing numbers. According to Sky News, 7,049 illegal e-bikes were confiscated in the 12 months to 19 May 2025, compared with 3,858 in the preceding year: an 83% rise. That is a meaningful increase. It is not, given the scale of the problem on any busy urban street, remotely sufficient.
Meanwhile, local authorities are separately wrestling with the legitimate hire-bike sector. Westminster City Council seized more than 1,000 dockless bikes from its streets since May 2025 and issued more than 5,300 fixed penalty notices to bike operators, amounting to over £53,000. The Royal Borough of Kensington and Chelsea seized a further 1,000 rental e-bikes in its own crackdown. These are legal machines, legally ridden for the most part, that are parked badly or abandoned. The enforcement challenge is real. It is not the same challenge.
London councils have seized 3,393 dangerously parked or abandoned hire ebikes this year, a figure 23% higher than the total for all of last year. The London Assembly has noted that 18% of all cycle collisions in London involved a hired cycle in 2025, up from just 2% in 2017, with six deaths recorded since 2017 and riders themselves making up around 80% of those injured. Those numbers deserve serious attention.
But here is the distinction that is consistently lost. A legal ebike, ridden carelessly through a red light, carries relatively little kinetic energy. The physics are unforgiving but the risks are asymmetric: most serious injuries are to the rider. An illegal electric motorbike doing 30mph or more is a categorically different proposition. The moral question about behaviour is similar; the public-safety question is not.
The driver speeding through a 20mph zone is more dangerous still. Department for Transport data for 2024, published in June 2025, shows that under free-flowing conditions, 76% of cars exceeded the speed limit on 20mph roads, with 10% exceeding it by more than 10mph. That behaviour attracts almost no public outrage. It kills people regularly.
The conflation of hire-bike nuisance with illegal electric motorbikes suits those who prefer to see cycling restricted rather than improved. It produces bad law: blanket bans proposed for ebikes on trains because of fires started by the unregulated lithium batteries favoured by illegal-machine operators. It produces bad enforcement: councils pouring resources into pavement-parked Lime bikes while the unregistered, uninsured, unlicensed machines continue past them at speed.
Hire-bike companies can and should be held to higher standards on parking and rider behaviour. The occasional Lime bike running a red light is annoying, and local authorities are right to fine operators for abandoned machines. But annoyance and danger are different categories.
The food-delivery industry’s dependence on riders using illegal machines is where ministers need to direct their attention. Until that political calculation changes, the 83% rise in seizures will remain a fraction of what is actually needed. The test is simple: will any government minister name the delivery platforms and set a deadline?
