ProX pistons are precision-machined on state-of-the-art CNC equipment, using the same low-expansion, low-friction alloy trusted by all major Japanese engine manufacturers. ProX Piston Kits are a premium solution for replacing the original piston in motorcycles, scooters, mopeds, ATVs, personal watercraft, and more.

Key Features:

• Ultimate Performance Coating: Most ProX pistons are coated for enhanced performance. OEM-style tin-coated pistons assist with the wear-in process during initial use. Additionally, the advanced black skirt coating not only aids the wear-in process but also reduces friction over time. This specially formulated mix of materials improves overall performance.
• For Nicasil/Plated Cylinders: Designed for use with the latest Nicasil-plated cylinders, ProX offers a wide range of pistons in standard sizes as well as A, B, C, D, and other oversize options.
• For Sleeved Cylinders: ProX Piston Kits for sleeved cylinders are available in standard sizes and a variety of oversizes, with options up to 2mm. These additional oversizes significantly extend the lifespan of the cylinder by allowing for multiple re-boring opportunities.
• Comprehensive Kit: Each ProX Piston Kit includes a piston, ring set, gudgeon pin, and circlips, making it ready to install straight out of the box.