WOSSNER PISTON KIT 02-20 YZ85 47.50 A, WOSSNER 8104DA YAMAHA MX

Piston Kit 47.50mm Bore 47.45 WOSSNER 8104DA (STD) Yamaha
YZ85 2002-2019 Wossner forged pistons are superior in strength and design. Engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls. Elliptically designed to provide a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse. Made in Germany. Part No. 56-W805.A.WO (oro2u.com)
Lock P/N CW14
Pin P/N WP058
Ring Set P/N RSB4750
Con Rod kit P/N P2008 Display (cm3) 85
Hub stroke (mm) 47.80
Clearance (mm) 0.05
Wossner compression Ratio: 2 stroke
OEM Compression ratio: 2 stroke
Dome volume (cm3)
Compression height (mm) 26.00
Theorectical weight (G) Cross reference numbers ONLY.
5PA-11631-10-A0, 09104832, 805M04750