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40cc volume is the VHM standard for Yamaha YZ85 and is developed for the best overall performance
The KTM / Husqvarna / GASGAS 50’s and 65’s have had the same seat attachment system for a long time
2021 - 2026 GASGAS 65 (with Nihilo Concepts Case Saver Only)
2021 GASGAS MC 65
Part number: HG02E410
Vertex Cast Replica Piston Kit 24370B YZ85 YZ85B RM65 40cc volume is the VHMMade 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