Polini Alum. single segment 70 CC , Minarelli Vertical for Aprilia Amico, SR-94, MBK Booster 50, Stunt, Yamaha BW'S, SPY, Zuma

This aluminium series consists of very high performing cylinders manufactured by Gilardoni. The advantage of aluminium as opposed to grey cast iron is the improved heat dissipation. The chrome-hardened Nikasil liner makes for long service life of piston and cylinder. The extra large exhaust port shaped by Polini's own proven unique design results in a performance of 10-11 hp Compatible with: - Aprilia: SR 50 Min.AC 94-_S - Mbk: Booster 50 euro 0-1_S, Booster 50 euro 2_S, Stunt 50 euro 0-1_S, Stunt 50 euro 2_S - Yamaha: BW's 50 euro 0-1_S, BW's 50 euro 2_S