Wiseco 40130M06700 Forged Piston Kit Honda CBR500 CB500X 12:1 CR Standard Bore 66.96mm

The Wiseco 40130M06700 is a high-performance forged piston kit designed for Honda CBR500 and CB500X engines. Built to 12:1 compression ratio, this kit is engineered to deliver increased power output and improved throttle response over the stock piston.

Key Features:

• Forged High-Silicon Aluminum Construction — Wiseco pistons are forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, improved heat transfer, and longer service life
• Standard Bore — 66.96mm — Direct replacement at stock bore diameter; oversize pistons require cylinder re-sleeving
• 12:1 Compression Ratio — Performance-tuned compression for increased horsepower and torque
• ArmorGlide Skirt Coating — Proprietary dry-film skirt coating reduces friction and wear for extended piston and cylinder life
• Dedicated Forging Design — Each piston is purpose-forged for this specific application rather than adapted from a generic design, ensuring optimal fit and cam profile
• CNC Diamond-Turned Finish — Precision-machined on computer-controlled turning centers for consistent sizing and a perfect finish
• Complete Kit — Includes piston, piston rings, wrist pin, and circlips; sold per cylinder

Wiseco piston kits are trusted by racers and performance enthusiasts across all forms of motorsport. This kit covers a single cylinder — two kits are required for the parallel-twin Honda CB500 / CBR500R engine. Top-end gaskets, bearings, and cylinder sleeves are not included unless otherwise noted.