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

Replacement pulley for RX8 front belt

The Arrowmax AM-RX8-345858 front pulley is an aftermarket replacement crafted for the XRAY RX8 belt-driven system. CNC machined from 7075 T6 aluminium and finished with a hard coat, the pulley is aimed at delivering low rotating mass while improving resistance to surface wear during track time.

Design priorities include reliable belt tracking and debris clearance: accurate CNC machining for concentricity, a protective hard-coated surface, plus side holes to eject dirt produced by belt contact. Together these features help keep the belt tracking true and reduce the risk of early wear at the front pulley.

Fitment notes and tuning: intended for installation in the front belt position on RX8 chassis belt systems, the pulley profile and concentricity will influence belt tension and drivetrain smoothness. Confirm alignment and set belt tension to the manufacturer recommended values after replacement; this item serves best as a direct replacement or robust spare, not a fundamental power upgrade.