XRAY RX8 20T Hard Coated Pinion 7075-T6 by Arrowmax AM-RX8-348520  [AM-RX8-348520]

Arrowmax AM-RX8-348520 Pinion Gear - 20T (2ND) (7075 HARD)
Price:
NZD$11.00
Brand:
Arrowmax
Model:
AM-RX8-348520
Condition:
Brand New
Write a review

20T aluminium pinion for XRAY RX8 tuning

The Arrowmax AM-RX8-348520 pinion is supplied as an aftermarket replacement for the XRAY RX8 chassis. Manufactured from 7075-T6 aluminium with a hard coating, this pinion aims to be light and long lasting while maintaining smooth engagement with the car's spur gear.

Marked for the 2ND clutch/motor position, the pinion is offered in 16T through 21T sizes: 16T, 17T, 18T, 19T, 20T and 21T. Swapping between these teeth counts lets you adjust acceleration and top speed and helps tune clutch engagement on two-stage setups without changing the spur.

Before running, check pinion to spur mesh, ensure the motor shaft is correctly aligned axially, and confirm the gear rotates freely with no binding. This part is intended for model use only.

Yes, its 7075-T6 construction and hard coat are common for durable aftermarket race pinions, though proper mesh and maintenance remain essential.
Lower tooth counts favour acceleration while higher counts increase top speed; the listed 16T to 21T range covers typical tuning steps.
No, changing the pinion lets you alter the ratio without swapping the spur, which is useful for quick trackside adjustments.

Copyright © 2008-2026 rcjaz.co.nz All rights reserved