PISTON KIT 13-21 BETA RR250 Enduro 66.40, PROX 01.7313.A
ProX 2-ring piston kit. Piston diameter 66.40mm. Piston kit includes piston rings, wrist pin, and circlips. Precision machined using state-of-the-art CNC equipment with a low-expansion, low-friction piston alloy. Features an OEM-style tin coating for break-in assistance. Part number 01.7313.A.
- SKU
- 56-W9857.A.PROX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
FULL DESCRIPTION
ProX Piston Kit - 66.40mm
This ProX Piston Kit is designed for high performance and durability, ensuring your engine runs smoothly. It features a precision-machined, two-ring piston crafted from a low-expansion, low-friction alloy, mirroring the materials used by major Japanese engine manufacturers.
The kit includes everything needed for installation:
- Piston rings
- Wrist pin
- Circlips
To aid in the crucial break-in process, the piston features an OEM-style tin coating, promoting optimal performance from the first ride. This kit is manufactured using state-of-the-art CNC equipment to ensure precise fitment and reliable operation.


