WOSSNER PISTON KIT 99-18 YZ250 66.40 C, WOSSNER 8216DC YAMAHA MX, 2 RING PISTON

Piston kit 66.42mm Bore 66.37 Wossner 8216DC (+0.02)
YAMAHA
YZ250 1999 - 2018,
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-W742.C.WO (oro2u.com)
Wossner Piston Kit (PN# 8216DC) 2 RING PISTON Yamaha YZ250 1999-13 66.4mm Bore.
Lock P/N CW18
Pin P/N WP033
Ring Set P/N RSB6640 x 2
Rod P/N P2028 Display (cm3) 249
Hub stroke (mm) 54.10
Clearance (mm) 0.06
Wossner compression Ratio: 2 stroke
OEM Compression ratio: 2 stroke
Dome volume (cm3)
Compression height (mm) 28.00
Theorectical weight (G)