Wossner Premium Series Piston Kit - 8923DB For KTM SX-F 250 / XC-F 250 / 250 Troy Lee Designs 2016-2022 | Gas Gas 250F 2021-2023 Brand_Moto-master A four-gear set is required

A four-gear set is required for gear-driven cams that do not come with secondary cam gears

1974-1975 Yamaha YZ 80

47 mm x 58

50" height

Wossner Premium Series Piston Kit - 8923DB For KTM SX-F 250 / XC-F 250 / 250 Troy Lee Designs 2016-2022 | Gas Gas 250F 2021-2023 Brand_Moto-master A four-gear set is requiredFeatures Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication Lightweight piston with a tight piston wall clearance for a quieter running engine Skirt coated for reduced friction and improved break in performance Ring land treatment for improved ring seal and oil control Double bridged forging design where noted Kit includes piston, rings, wrist pin and pin locks Specs Bore Size 78. 01 mm