This kit is suitable for the early 49cc MadAss. It's the first stage kit to over ride stock restrictions.
The kit consits of the following
- 5 pin CDI unit free reving Check you have a 5 pin first, some EU bikes had a D/C 4 pin. Now with BOLT CDI not in photo
- 49T 420 pitch 108mm centre hole (check your size first as there are 2 sizes)
- NGK C7HSA spark plug
The kit will give around 20% longer gears and improve the top end speed.
Please check hole size in your sprocket first and let us know as there is two types of fitment.
PLEASE NOTE
THE CDI REQUIRES RUBBER MOUNTING TO ENSURE LONGEVITY.