PISTON KIT 78-80 CR250 70.50, FORGED WOSSNER 8154D050, ATC250R 81-84

Piston Kit 70.50mm Bore 70.44 Wossner 8154D050 (+0.50)

HONDA MX
CR250R 1978-1980,
HONDA ATV
ATC250R 1981-1984,

• 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-W431+P2.WO (oro2u.com)
Lock P/N CW18
Pin P/N WP033
Ring Set P/N RSB7050 x 2

Display (cm3) 123
Hub stroke (mm) 64.40
Clearance (mm) 0.06
Wossner compression Ratio: 2 stroke
OEM Compression ratio: 2 stroke
Dome volume (cm3)
Compression height (mm) 32.50
Theorectical weight (G)

1978 Honda CR 250 R 1979 Honda CR 250 R 1980 Honda CR 250 R
1981 Honda ATC 250R 1982 Honda ATC 250R 1983 Honda ATC 250R 1984 Honda ATC 250R