Prox forged Piston kitRef : PRO00460A / 1129322001

The forged piston PROX (manufacturer reference: 01.7425.A) is aimed at riders who are reconditioning their Cross engine to achieve performance close to the original equipment. Made of aluminum, this piston features a flat with hollow geometry that facilitates installation in oversized machined cylinders.

• Compression: standard
• Diameter: Ø 99.960 mm (Ø 99.960)
• Oversize letter: A
• Material: aluminum
• Specificity: Flat with hollow

This PROX piston is intended for the reconditioning of 4T Cross-type engines, as a replacement during a bore corresponding to the oversize A. Its finish and dimensions allow for precise installation with the appropriate sleeves and suitable rings. It is particularly suitable for the following models: BETA RR 480 4T RACING (2024), BETA RR 480 4T (2024), and BETA RR 480 4T ENDURO RACING (2019) in 480 cm3.

Before installation, check the compatibility of the dimensions with your cylinder and adhere to the manufacturer's recommendations for piston/ring clearance and break-in. This product is intended for maintenance and engine reconditioning operations on off-road machines.