Piston kit 87.50mm Bore 87.44 Wossner 8604D250 (+2.50)
HONDA
XR400R 1996 - 2004,
(ATV)
TRX400EX 1999 - 2008,
TRX400X 2009 - 2012, 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-W4606+250.WO
Wossner Piston Honda XR400 87.50 mm Bore (PN# 8604D250)
Lock P/N CW20
Pin P/N WP052
Ring Set P/N 875XSY
Rod P/N P4021 Display (cm3) 397
Hub stroke (mm) 70.00
Clearance (mm) 0.06
Wossner compression Ratio: 11.00:1
OEM Compression ratio: 10.00:1
Dome volume (cm3) +3.20
Compression height (mm) 26.20
Theorectical weight (G)