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Exotic esters and highly-refined castor oil maintain oil film thickness
What happens when this condition occurs is the clutch is only operating on half of the spring’s resistance dampening
Including aluminium mounting plate
- Vertex top end gasket kit (810414)
40cc volume is the VHM standard for Yamaha YZ85 and is developed for the best overall performance
Vertex Cast Replica Piston Kit 24370B YZ85 YZ85B RM65 Exotic esters and highly-refined castorMade in Italy Product number: 24370B Fits Models: YZ 85 2002 2023 YZ 85 Big wheel 2022 2023 SPECS: Compression RatioSTD Cylinder Diameter 47. 500 mm Displacement 85 cc Piston Diameter 47. 450mm Kit includes: Piston, rings, wrist pin, and circlips Vertex Piston Kits Exact fit A, B, or C pistons match your cylinder bore perfectly to maximize power and performance while reducing blow by and oil consumption 2 stroke pistons have an 18% silicon content