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

RX8 rear side pulley - composite upgrade

The Arrowmax AM-RX8-345838 composite side belt pulley serves as a replacement component for the XRAY RX8 chassis. Manufactured from 7075 aluminium with a hard coating, the unit emphasises longevity and easy maintenance rather than visual modification. Side vents in the pulley body help to expel belt dust and detritus, reducing the risk of accumulation along the belt route.

As a rear-side belt drive element, the pulley is intended for a like-for-like swap with existing RX8 rear pulleys and conforms to the stock belt path. The hard-coated 7075 construction provides greater surface wear resistance compared with untreated aluminium, helping to keep belt seating consistent through track days and setup sessions.

Installation is straightforward for competent model technicians: remove the original rear side pulley, inspect belt and mating surfaces for any wear, fit the Arrowmax pulley to the same shaft location, and verify alignment and tension. No special electronics or drivetrain alterations are needed; it integrates with the RX8 belt route and supports typical drivetrain tuning tasks such as tension setting and break-in observation.

This product is offered as an accessory for RC models only and is described here strictly as a component for the RX8 platform.