PISTON KIT 84 SET/4 1999-2007 SUZUKI HAYABUSA HC WOSSNER K8730D300-4

Forged piston kit set of four from the Pro Series with a +3.00 mm oversize (84.00 mm bore) and high-compression crown, engineered for performance applications. The elliptical design promotes uniform load distribution during thermal expansion, aiding durability under high-demand conditions. Manufactured in Germany. Features a set of four forged pistons (Pro Series), +3.00 mm oversized bore (84.00 mm, actual piston diameter 83.95 mm), and a three-ring configuration. The elliptical design provides a uniform bearing surface and improved thrust load distribution, with enhanced heat dissipation for thermal stability. Manufactured in Germany. Specifications include a bore size of 84.00 mm (actual piston size 83.95 mm), oversize of +3.00 mm, displacement range of 1299 / 1395 / 1429 cm³, stroke of 63.00 mm, clearance of 0.05 mm, compression ratio (Wössner) of 13.50:1, OEM compression ratio (reference) of 11.00:1, dome volume of −2.45 cm³, and compression height of 25.10 mm. Cross-reference OEM part numbers include piston kit reference K8730D300-4, clip CW20, piston pin WP029, and replacement ring set RIK84.00B.