PROX Forged Replica Piston Kit designed for reliable 4-stroke performance with low friction and excellent durability. Precision CNC machining and a low-expansion forged aluminum alloy help keep clearances stable and wear low.
PROX Forged Piston Kit is built to restore strong, consistent 4-stroke engine performance with the durability riders expect from a forged replica design. Made from a specific low-expansion aluminum alloy to reduce friction and maximize reliability, it helps your engine run smoother under heat and load—ideal when you want dependable power after a rebuild.
Because the piston is precision CNC-machined on modern equipment and uses the same low-expansion, low-friction alloy trusted by major Japanese engine manufacturers, you get a component engineered for stable clearances, reduced wear, and long service life. That means fewer worries during hard riding and more confidence in your top-end rebuild.
