Piston kit 100.02mm Bore 99.97 Wossner 8617DC (+0.02)

YAMAHA

XT660R 2004 - 2017

• 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-W203.C.WO (oro2u.com)

Wossner Piston Yamaha XT660R (PN# 8617DC)

Lock P/N CW23

Pin P/N WP024

Ring Set P/N 1000XSY-3

Display (cm3) 660

Hub stroke (mm) 84.00

Clearance (mm) 0.05

Wossner compression Ratio: 10.70:1

OEM Compression ratio: 10.00:1

Dome volume (cm3) -0.30

Compression height (mm)27.50

Theorectical weight (G)