Heard a right racket coming up the street the other day. Expecting to see a youth in bandana on a quadbike I was bemused when the "thing" shot past me to see it was a pedal cycle with a petrol engine attached. I was too surprised and the rider was too fast to actually see where the engine was mounted but I did see that he wasn't pedalling so it must have been throttle controlled. And secondly it wasn't one of those 1940s French things but was a mountain bike. I assume it must have had the engine retrofitted therefore. Does anyone know more about rhese, is it legal, is it a kit or has someone shoehorned a lawnmower engine onto a bike? I can see no reason whatsoever for such an abomination save the love of noise and the smell.