Derbi dirt kid 12 childs 50cc 4 stroke motorbike.( no need to mix with 2 stroke oil). sturdy bike- red (santas favorite colour!). electronic ignition, kick start, single speed automatic- great for beginners. front disc brakes. adjustable seat height. bought this bike for my son brand new from A shop four years ago and it has only had occassional ...

...and gearbox, so going up to a 125cc will be so much easier. Like all 50cc bikes, this one has had a new owner every year, so I know no history since before we owned it. Known faults, the rev counter doesn't work. The two stroke oil tank leaks if it is filled to the top. Someone has previously ...