Hoca Performance Piston & Ring Set. Choose from 58.5mm, 61mm and 63mm sizes. Made for Big Bore Cylinder kits found on 150cc and 125cc GY6 4-stroke engines.
Hoca Performance Piston & Ring Set. Choose from 58.5mm, 61mm and 63mm sizes. Made for Big Bore Cylinder kits found on 150cc and 125cc GY6 4-stroke engines.