Piston Kit - 57.4mm - GY6 150cc Engine Mounting measurement: center-to-center 42mm (1

Mounting measurement: center-to-center 42mm (1

Switch is a 3 position switch plus a momentary position for starting

Storm 70 and Raging Bull 110 atv

Please look closely at wires coming out of regulator

Piston Kit - 57.4mm - GY6 150cc Engine Mounting measurement: center-to-center 42mm (1Chinese 57. 4mm Piston Kit for 150cc ATVs, Scooters Mopeds and Go Karts. This Chinese 57. 4mm piston kit is the replacement part for many 4 stroke Chinese atvs, go karts and scooters. Piston kits ship complete with piston, piston rings, piston pin and piston clips. This kit fits GY6 150cc models. Piston kit description: Piston Height: 38mm (1. 49 in) Piston Diameter: 57mm (2. 24 in) Piston Pin Length: 41. 8mm (1. 64 in) Piston Pin Diameter: 15mm (0.