Police in York have seized a bicycle that had been converted to run on a petrol engine – with the owner reported for having no licence or insurance.

Appropriately for Halloween, it’s a bit of a ‘Frankenbike’ – essentially, it’s a mountain bike that’s been converted into a moped through the addition of that engine – one that even the UCI wouldn’t have too hard a time detecting.

Under the Electrically Assisted Pedal Cycles (Amendment) Regulations 2015, electric bikes with power assistance to a maximum speed of of 25 km/h (15.5 mph) and a motor of no more than 250 Watts (maximum continuous rated power output) are considered to be pedal cycles and therefore no licence or insurance is needed.

Those regulations do not apply to petrol-powered bikes, however – and even if they did, or if the motor in this case was electric-powered, the owner of the bike seized in York said the speed had been capped at 20mph, which would have taken it beyond the permitted threshold.