Forged piston kit set of four with a standard 74.00 mm bore, engineered for high-performance 4-stroke applications to provide improved compression, efficient heat management and structural integrity under sustained thermal and mechanical load. Manufactured in Germany with an elliptical profile to promote even expansion and balanced thrust load distribution.

Features

• Forged piston construction for enhanced durability and strength


• Optimised for efficient heat transfer from combustion chamber to cylinder walls


• Elliptical profile for even expansion and thrust load distribution


• Reduces localised pressure and minimises risk of piston collapse


• Manufactured in Germany

Specifications

• Bore: 74.00 mm (STD)


• Piston code: Wössner K8817D100-4


• Clip: CW19


• Piston pin: WP028


• Ring set: 740XAS


• Displacement: 771 cm³


• Stroke: 44.7 mm


• Clearance: 0.06 mm


• Wössner compression ratio: 11.70:1


• OEM compression ratio: 10.90:1


• Dome volume: +5.70 cm³


• Compression height: 23.80 mm


• Quantity: Set of 4 pistons

Cross-Reference OEM Part Numbers

• 
  

  56-W9888.100.WO

  
  

Vehicle Fitments

• Suzuki GSX-R750 1988–1989


• Suzuki GSX-R750F Katana 1989–1997