This Arrowmax 1st gear pinion is an aftermarket clutch pinion made specifically for the XRAY NT1 platform. Machined from 7075-T6 aluminium and finished with a hard coat, it is intended to replace the stock 1st gear pinion and mesh with NT1 spur gears without modification.
The available tooth counts cover common on-track tuning steps: 16T, 17T, 18T, 19T, 20T, 21T, 22T and 23T. Select different tooth counts to adjust acceleration versus top speed for your XRAY NT1 setup.
Installation notes: the pinion follows the NT1 clutch assembly form factor, so verify shaft diameter and clutch fit before final installation. When installing, set a clean gear mesh and test clutch engagement across throttle ranges to prevent premature wear.
Tuning role: swapping the 1st pinion is a simple mechanical way to alter gearing for specific track layouts or motor characteristics. Used with standard NT1 spur gears, these pinions change gearing only and do not require ESC or motor reprogramming.
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