YOUNGSTERS are putting their lives in danger by illegally riding mini motorbikes on York's roads.

Police in Heworth said they have received eight reports since Christmas of young people, mostly teenagers, riding the tiny machines, also known as monkey bikes, on the highway.

On one occasion, a car driver missed a mini motorbike rider by inches when it shot into his path as he reversed out of his driveway.

PC Jon Bostwick, ward manager for Heworth, said: "They are not only risking life and limb, they are also committing a large range of offences.

"The bottom line is that these machines are not safe enough to mix in with modern traffic. They are so small that they, and their riders, are too low to be seen by drivers of other vehicles, especially big vans and lorries."

In law, mini motorbikes are classed as either motorcycles or mopeds, depending on their engine size. To go on a public highway, they need to be registered for road use, taxed and with lights, brakes and a number plate. The rider must wear a helmet and have passed the appropriate test.

York enthusiasts are able to ride and race safely at marshalled sessions organised by York MiniMoto, an association for owners of racing bikes a third of the size of normal motorbikes.

Their sessions take place on Sunday afternoons in the car park of Bookers Cash & Carry, at Clifton Moor, and anyone interested should visit their website at www.minimoto.tk for more information.

Organiser Barry Cameron said: "None of us ride on the roads - these machines are designed for racing. They really do whip about a bit."

Anyone wishing to discuss the safety and legal issues surrounding mini motorbikes should phone PC Bostwick at the Safer York Community Partnership on 01904 669056.

Updated: 10:09 Tuesday, January 25, 2005