XRAY RX8 Front Belt Pulley 18T by Arrowmax AM-RX8-345858  [AM-RX8-345858]

Front belt pulley for RX8

This Arrowmax AM-RX8-345858 front belt pulley is an RC-scale replacement part intended for the XRAY RX8 belt-driven drivetrain. Machined from 7075 T6 aluminium and treated with a hard surface coating, the pulley aims to balance low mass with increased wear resistance while remaining suitable for routine race or practice use.

Key design details focus on drivetrain reliability and debris management: precision CNC machining for concentricity, a hard-coated finish for surface durability, and side holes that help clear dirt generated by friction. Those features support consistent belt tracking and reduce the likelihood of accelerated wear in the front pulley location.

Fitment and tuning role: this pulley is intended for the front belt position on RX8 chassis belt systems, where pulley concentricity and profile affect belt tension and drivetrain smoothness. When replacing the pulley, verify alignment and belt tension to maintain neutral handling; the part is used as a direct replacement or an upgraded spare rather than a major performance modifier.