Beta RR 390 4 T Enduro Racing [2019] - Piston Kit

PROX piston kit for Beta RR 390 4 T Enduro Racing

The PROX piston kit is tailored to the Beta RR 390 4 T Enduro Racing from 2019. The forged aluminum piston provides a precisely defined design for engine repair and is supplied with associated components for installation.

Function and execution

The standard piston compression and compression ratio of 12.5:1 corresponds to the intended design of this piston. The specificity “Flat with hollow” describes the piston shape. With a diameter of 87,960 mm and the oversize marking A, the kit can be selected specifically based on the engine version and the required piston dimensions.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 87,960 mm
• Letter oversize: A
• Oversize: STD
• Compression ratio: 12.5:1
• Stroke: 4T
• Specificity: Flat with hollow

Vehicle assignment and scope of delivery

The piston kit is intended for the Beta RR 390 4 T Enduro Racing, built in 2019. The scope of delivery includes the piston, piston rings, piston pins and circlips. The technical dimensions and markings should be compared with the existing engine version before ordering.