WOSSNER 99mm PISTON KIT ALL BMW R1100RS/GS/S, R1150RS/S

Piston kit 99mm BORE 98.96 Wossner K8543DA-2 (STD)

BMW
(All years)
1100RS,
1100GS,
1100S,
1150RS,
1150S, �

• 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-W9793.099.WO (oro2u.com)
ALL YEARS BMW 1100/1150 RS, GS, S K8543DA-2
WOSSNER K8543DA-2 PISTON bore 99mm set/2,

Stroke 70.5mm

OEM Comp. Ratio 10.7:1
Dome/Bowl Volume +2.3cm
Comp. Height 32.10mm

Lock P/N C22X1.6
Pin P/N WP009
Ring Set P/N 990XSY

Display (cm3) 1085
Hub stroke (mm) 70.50
Clearance (mm) 0.04
Wossner compression Ratio:OEM
OEM Compression ratio: 10.70:1
Dome volume (cm3) +2.30
Compression height (mm) 32.10
Theorectical weight (G)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.