Motoforce Racing cast iron sport cylinder kits for Minarelli AM6 50cc 2-stroke engines.

70cc or 80cc available.

The 70cc kit offers an increase of 3-4BHP over the standard 50cc kit.
The 80cc kit offers an increase of 4-6BHP over the standard 50cc kit.
Both kits have much higher torque versus the standard 50cc kit.

Robust cast iron bore offering every day reliability for use on the road. 5 transfer ports and a simple exhaust port keep these kits rider friendly.

70cc kit: A 19-21mm carb, reinforced clutch & Stage6 Streetrace exhaust is recommended.

80cc kit: A 21-24mm carb, reinforced clutch, reinforced crank & Stage6 Streetrace exhaust is recommended.

Included: cylinder, head, gasket set, piston kit & exhaust port adaptor.

Motoforce MF26.18801, MF26.18810