a new question. What gearing do you advise on a 50 Special with a Polini 50cc kit?
I want to reach the maximum speed possible without loosing the opportunity to climb occasionally a mountain.
I will fit a 16/16 or a 18/16 (19/19 also available) carburettor, a mazzucchelli crank, electronic ignition, lightened flywheel (1,6 kgs), Polini righthand exhaust, piston porting, case porting and inlet porting.
I estimated 7-8.000 rpm and 4-4,5 hp.