The Malossi Sport 70cc cast iron cylinder kit transforms your Yamaha BW's, Slider, Zuma, MBK Booster, or Stunt into a responsive performer.

 Built for endurance racing yet refined for daily riding, this cast iron design delivers exceptional heat resistance and durability that outlasts single-ring alternatives. Expect impressive torque and power gains — paired with proper clutch tuning, acceleration becomes genuinely thrilling.

Combined with a 17.5mm carburetor and performance exhaust, you'll unlock 7–9 hp across a broad powerband, making CVT weight adjustment straightforward. The Stage6 Pro Replica or Tecnigas Silent Pro exhausts suit riders seeking discretion without compromise.

Kit includes 70cc cast iron cylinder with 6 transfer ports and oval exhaust port, 2-ring piston, high-compression head, carbon reed petals, and complete gasket set.

Note : 70cc displacement — no road approval.