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

Front pulley for RX8 belt systems

The Arrowmax AM-RX8-345858 front pulley is a direct replacement made for the XRAY RX8 belt-driven drivetrain. CNC machined from 7075 T6 aluminium and finished with a hard surface coating, the design keeps mass low while improving surface wear resistance for regular race days and practice laps.

Design highlights target drivetrain reliability and debris control: tight CNC tolerances for concentricity, a hard-coated contact surface to resist scoring, and side holes that shed grit from the belt groove. Those details help maintain steady belt tracking and reduce the chance of accelerated wear in the front pulley location.

Fitment and setup notes: intended for the front belt position on RX8 chassis belt systems, where pulley concentricity and profile influence belt tension and drivetrain smoothness. When fitting this part, check alignment and set belt tension to the manufacturer recommended range to preserve neutral handling; treat the pulley as a direct replacement or a durable spare rather than a major power upgrade.