PISTON KIT 01-04 YZF250 79.00, FORGED WOSSER 8559D200 3-RING

Piston kit 79mm Bore 78.96 Wossner 8559D200 (+2.00)

YAMAHA
YZ250F 2001 - 2004,
WF250F 2001 - 2004,
(3 RINGS)

• 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-W4738+200.WO (oro2u.com)
Wossner Piston Yamaha YZ250F 79 mm Bore (PN# 8559D200)
Lock P/N CW16
Pin P/N WP059
Ring Set P/N 790XAS-2

Display (cm3) 249
Hub stroke (mm) 53.6
Clearance (mm) 0.04
Wossner compression Ratio: OEM
OEM Compression ratio: 12.50:1
Dome volume (cm3) -4.70
Compression height (mm) 22.20
Theorectical weight (G)