XRAY RX8 Rear Side 18T Belt Pulley Composite Hard-Coated 7075 - Arrowmax AM-RX8-345838  [AM-RX8-345838]

Replacement composite pulley for XRAY RX8 rear drive

This Arrowmax AM-RX8-345838 composite side belt pulley is an RC-scale replacement made for the XRAY RX8 chassis. Machined from 7075 aluminium with a hard coating, the component prioritises durability and straightforward upkeep rather than cosmetic change. Cutouts in the pulley body help shed debris created by belt friction, reducing the chance of contamination building up along the belt path.

As a rear-side belt drive component, the pulley is intended as a direct swap with existing RX8 rear pulleys and maintains the original belt route. The hard-coated 7075 surface provides better resistance to wear than untreated aluminium, helping preserve consistent belt seating through practice sessions and tuning adjustments.

Fitting is a routine task for experienced model technicians: remove the OEM rear side pulley, inspect the belt and mounting surfaces, place the Arrowmax unit in the same shaft position, then confirm belt alignment and tension. No special electronics or drivetrain modifications are required; it integrates with standard RX8 belt routing and supports routine drivetrain tuning like tension checks and run-in observations.

This item is supplied as an accessory for model use only and is described here solely as a replacement part for the RX8 platform.