PISTON KIT 05-21 YZ125 54.00 D, PROX 01.2225.D
ProX Piston Kit 01.2225.D for 54.00mm bore engines. This kit includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using state-of-the-art CNC equipment and the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. Features an OEM-style tin coating for easier break-in. Replacement parts: piston rings 02.2222, piston pin 04.1546.7, piston clips 05.1510.
- SKU
- 56-W845.D.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
FULL DESCRIPTION
ProX Piston Kit 54.00mm Bore for Yamaha YZ125
This ProX Piston Kit is engineered for high-performance and durability, designed to bring your engine back to peak operating condition. Each kit is meticulously assembled and ready for immediate installation, ensuring a seamless replacement process.
Crafted using the latest advancements in CNC machining technology, ProX pistons utilize a premium low-expansion, low-friction alloy. This material is the same choice employed by leading Japanese engine manufacturers, guaranteeing exceptional quality and performance.
To facilitate a smooth and efficient break-in period, this piston features an OEM-style tin coating. This coating helps to minimize initial wear when you first start your machine after installation.
Key Features:
- Complete Piston Kit: Includes piston rings, wrist pin, and circlips for a full replacement.
- Precision Machined: Manufactured on state-of-the-art CNC equipment for exacting tolerances.
- High-Quality Alloy: Uses a low-expansion, low-friction material trusted by major Japanese manufacturers.
- Tin Coating: Features an OEM-style tin coating to aid in the break-in process.
- Ready to Install: All components are supplied to ensure a straightforward installation.
- 2-Stroke Design: Specifically designed for 2-stroke engines.
The included replacement parts are Piston Rings (02.2222), Piston Pin (04.1546.7), and Piston Clips (05.1510).


