Pro Circuit’s newest product is a High-Compression Piston Kit for the 2020 YZ450F. Manufactured by JE Pistons to exact specifications, Pro Circuit pistons are forged from high-quality aerospace aluminium alloy using advanced CNC-machined technologies. The result is a significant gain in low-end torque and high-RPM performance.

Pro Circuit High-Compression Piston Kits are designed for superior performance in either stock or modified engines and is a must-have engine component for serious racers.

It costs £450 from CGH Imports.