Refresh your 250cc 2-stroke top end with this PROX OEM-replacement piston kit, made in Japan for reliable fit and performance. High-silicon cast aluminum is CNC-machined to tight tolerances and finished with a moly-coated skirt for reduced friction.
Highlight the main benefit or unique feature in three to four sentences.The PROX Piston Kit is a Japan-manufactured, OEM-replacement top-end solution designed to restore compression, throttle response, and reliability on 250cc 2-stroke engines. It’s cast from a high-silicon-content aluminum alloy and CNC-machined to extremely close tolerances to meet or exceed OEM specifications. A moly-coated skirt helps reduce friction and wear for smoother operation and longer service life. This complete kit simplifies your rebuild by providing the key components you need in one box.
Describe how the product/service solves a specific problem or improves life.Worn pistons and rings can cause hard starting, loss of power, and inconsistent performance. By replacing the piston assembly with a precision-made kit, you bring the engine back to proper sealing and efficiency—helping your bike run stronger and more consistently on track or trail while reducing the risk of further engine damage.
