Piston kit 101mm BORE 100.96 Wossner K8544DA-2   (STD) BMW
(All years)
1200ST,
1200C,
CRUISER WELLE,   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-W9794.101.WO ALL YEARS BMW 1200ST/1200C CRUISER WELLE K8544DA-2 WOSSNER PISTON, 101(mm),

Stroke 73mm
OEM Comp. Ratio 10:1
Dome/Bowl Volume +2.4cm
Comp. Height 30.70mm
Lock P/N C22X1.6
Pin P/N WP009
Ring Set P/N 1010XSY-3 Display (cm3) 1085
Hub stroke (mm) 73.00
Clearance (mm) 0.04
Wossner compression Ratio:OEM
OEM Compression ratio: 10.00:1
Dome volume (cm3) +2.40
Compression height (mm) 30.700
Theorectical weight (G)