ProX Piston Kits are precision-machined using advanced CNC equipment and manufactured from a low-expansion, low-friction alloy consistent with those used by leading Japanese engine manufacturers. This specific piston kit features a 97.00mm bore and a compression ratio of 12.5:1, offering a direct replacement for OEM components across a range of Yamaha models.

Features

• CNC-machined for consistent precision
• Manufactured from low-expansion, low-friction alloy
• Suitable for motorcycles, scooters, mopeds, ATVs, and personal watercraft

Specifications

• Bore Size: 97.00mm
• Compression Ratio: 12.5:1

Vehicle Fitments

• Yamaha WR 450 F 2016–2018
• Yamaha YZ 450 F 2014–2017
• Yamaha YZ 450 FX 2016–2018