XRAY RX8 20T 2-speed belt pulley by Arrowmax AM-RX8-345820  [AM-RX8-345820]

2-speed belt pulley for RX8

This is an RC-scale 2-speed belt pulley designed for XRAY RX8 two-speed systems, supplied by Arrowmax as model AM-RX8-345820. Machined from 7075 T6 aluminium and finished with a hard coating, the pulley balances light weight with increased wear resistance for prolonged track use. The side holes are engineered to help shed debris generated by belt friction, reducing buildup that can affect shifting consistency.

In a typical RX8 two-speed configuration the pulley functions as a tuning element for final drive behavior, affecting shift points and drivetrain response. The CNC machining gives tight concentricity for smoother belt running and consistent engagement between pulley and belt during high-RPM operation. Use this part when replacing a worn pulley or refining your RX8 transmission setup.