Beta RR 390 4 T [2020-2024] - Piston Kit

PROX piston kit for Beta RR 390 4 T

The PROX piston kit is tailored to the Beta RR 390 4 T from 2020-2024. The forged aluminum piston combines the specified standard compression with a clearly defined design for engine service. The kit contains the components listed for piston installation, providing a cohesive solution for piston replacement.

Function and execution

The piston is made of forged aluminum. The “Flat with hollow” specification describes the shape of the piston. With the standard compression value and the specified compression ratio of 12.5:1, the kit is clearly described for the specified engine configuration.

Technical data

• Brand: PROX
• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter Ø (mm): 87,970
• Letter oversize: B
• Oversize: +0.01
• Compression ratio: 12.5:1
• Stroke: 4T
• Specificity: Flat with hollow

Vehicle assignment

The PROX piston kit fits the Beta RR 390 4 T, built between 2020 and 2024. This assignment supports targeted selection based on model and year of manufacture.

Scope of delivery

• Piston
• Piston rings
• Piston pin
• circlips