Description
The TRX450 Foreman demands a piston that can handle sustained high RPM operation and varying terrain demands. This Wiseco piston kit delivers OEM-level precision with a 9.5:1 compression ratio that extracts measurable gains in peak power and mid-range response. Whether you’re rebuilding after a top-end refresh or upgrading an aging engine, this standard bore 90mm kit provides the durability and consistency you need for long service life.
Wiseco’s OEM-equivalent forging process ensures tight tolerances and consistent heat treatment across every unit. The increased compression ratio improves combustion efficiency without requiring fuel octane upgrades, making this a straightforward bolt-in solution for stock fuel systems. Installation is within reach for experienced DIY mechanics, though we recommend having a qualified technician handle ring gapping and proper honing procedures for best results.
- Standard bore 90mm
- 9.5:1 compression ratio
- Single piston kit
- Wiseco forged construction
- OEM-equivalent fitment TRX450 Foreman
- MPN: 4825M09000
- Gasket kit sold separately
- High-temperature rated
- Precision ring grooves
