XRAY RX8 20T Two-Speed Pulley Upgrade by Arrowmax AM-RX8-345820  [AM-RX8-345820]

Product overview for RX8

This 20T 2-speed belt pulley fits XRAY RX8 two-speed transmissions and is produced by Arrowmax as model AM-RX8-345820. The pulley is CNC machined from 7075 T6 aluminium and receives a hard coating to improve resistance to belt wear while keeping mass low. The pattern of side holes is designed to expel debris from the pulley-belt interface, reducing the chance of buildup that can impair shifting performance.

Installed in an RX8 two-speed arrangement the pulley acts as a tuning element for final drive characteristics, changing when shifts occur and how the drivetrain reacts. Accurate machining yields strong concentricity for reliable belt alignment and smooth engagement under high-speed conditions. Consider this part for replacement of worn pulleys or to fine-tune an RX8 transmission build.