Wiseco R787 71mm Big Bore Piston Kit for Suzuki GSX-R750 11:1 Compression

The Wiseco R787 is a forged aluminum piston kit engineered for the Suzuki GSX-R750, delivering a 1.00mm oversize 71.00mm bore and 11:1 compression ratio that bumps displacement to approximately 771cc. Designed for serious performance riders and racers, this kit delivers measurable gains in power and reliability over stock cast pistons.

Key Features:

• Forged high-silicon, low-expansion aluminum construction for superior tensile strength, reduced weight, and improved heat transfer
• 71.00mm bore diameter — 1.00mm oversize for increased displacement (approx. 771cc)
• 11:1 compression ratio for improved power output
• Diamond-turned CNC finish ensures precise sizing with zero variation, compatible with cast iron, chrome, Nikasil, and boron composite cylinder bores
• Dedicated forging optimizes the strength-to-weight ratio for this specific engine application
• Ring set included — 2795XA-style performance rings designed to maintain geometry under extreme racing conditions
• Wrist pin and circlips included for a complete top-end rebuild
• Engineered and manufactured in the USA

Each kit includes pistons, rings, wrist pin, and circlips — everything needed for a complete top-end rebuild. Wiseco's oversize pistons are ideal for refreshing worn cylinders or building a high-performance street or track engine.