Polini 1st Oversized Piston (70cc Bore Kits); Honda Dio, Sym GO MAX ELECTRICAL EQUIPMENT allowing you to run higher-performance

allowing you to run higher-performance calipers and oversized rotors for superior stopping power

12g sets included

Adjustable Cutting Diameter: Engineered specifically for GY6 125cc and 150cc (QMI152/QMJ157) engine blocks to facilitate 170cc

18" widest point - bottom

High-tensile synthetic rubber resists stretching and edge-fraying

Polini 1st Oversized Piston (70cc Bore Kits); Honda Dio, Sym GO MAX ELECTRICAL EQUIPMENT allowing you to run higher-performancePolini replacement piston for 70cc sport 12mm CPI (46mm) cylinder kits for Honda Dio, SYM DD50 and 2T Minarelli engines. NOTE: This piston is not compatible with Polini Sport 10mm (47. 6mm) cylinder kits. Specifications: Piston: 47mm Wrist pin: 12mm Includes: piston, piston rings, circlips, wrist pin Compatibility: Honda Dio SYM DD50 Minarelli 2T horizontal engines About Polini: For over 50 years, Polini has stood unparalleled in the racing and tuning