PISTON KIT 04-07 CRF250R 78.00, PROX 01.1338.A 04-17 CRF250X
PISTON KIT 78.00mm STD COMPRESSION 12.9:1. ProX pistons are precision machined on the latest CNC equipment using the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. ProX Piston Kits are a first-class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, or Personal Watercraft. Most ProX pistons come with an OEM-style Tin coating to assist the wear-in process. A new skirt coating has been developed that assists the wear-in process and reduces friction after wear-in. The black coating increases performance. Replacement parts include PROX RING SET 02.1335, PROX PISTON PIN 04.1641.5, and PROX CLIPS 05.1612. Part number 01.1338.A. Manufacturer: Pro-X Racing.
- SKU
- 56-W4829.A.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
FULL DESCRIPTION
ProX Piston Kit - Standard Compression
This ProX Piston Kit is engineered for high-performance replacement of original pistons. Precision-machined using advanced CNC equipment, it features a low-expansion, low-friction piston alloy identical to that used by major Japanese engine manufacturers.
Key Features:
- Standard Compression Piston Kit
- Bore Size: 78.00mm
- Compression Ratio: 12.9:1
- Includes advanced skirt coating designed to assist with the initial break-in process and reduce friction for improved performance after wear-in.
- Constructed from a high-quality alloy for durability and optimal engine function.
- Direct replacement for original pistons, offering a first-class solution for your vehicle.
Replacement Parts Available:
- ProX Ring Set
- ProX Piston Pin
- ProX Clips


