The different categories are G1, G2 and G3.
- Homologated moped with gear box (Derbi Senda, HM CRE, etc), engine model corresponding to the frame, 50cc top-end free, 19mm max carburettor.
Frame, steering tube, fork, swingarm kept original but can be reinforced.
- Homologated water-cooled moped with vario transmission, with frame (corresponding to engine model) other than V or scooter (see G1), like MBK FXC, ....
The frame can be reinforced. Suspensions and covering are free. 50cc max.
Home made website.