PISTON KIT 14-15 YZF250 77.00, PROX 01.2414.B, 2-RING
PISTON KIT 77.00 mm Bore STD Compression 13.5:1. ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on the latest CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use. Uses an OEM style tin coating to assist the break-in process. Replacement parts: PROX RING SET 02.3340. PROX 01.2414.B.
- SKU
- 56-W4961.B.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (4)
FULL DESCRIPTION
ProX Piston Kit 77.00mm - 2 Ring
This ProX Piston Kit is engineered for optimal performance and durability. It features a 77.00 mm bore size and a standard compression ratio of 13.5:1. The kit is ready for immediate installation, including essential components such as piston rings, a wrist pin, and circlips. Precision machining on state-of-the-art CNC equipment ensures a perfect fit and function.
ProX pistons utilize a low-expansion, low-friction alloy, mirroring the materials used by major Japanese engine manufacturers. The kit includes an OEM-style tin coating that aids in the crucial break-in process for your machine.
This kit is designed as a direct replacement part. Replacement ring sets are available separately.
- Bore Size: 77.00 mm
- Compression Ratio: 13.5:1
- Ring Configuration: 2-Ring
- Included Components: Piston, Piston Rings, Wrist Pin, Circlips
- Material: Low-expansion, low-friction alloy
- Coating: OEM-style tin coating for break-in assistance
- Manufacturing: Precision CNC machined


