TAMIYA TT01 Delrin 42-Pitch 61T Spur Gear DTT4261T by GPM  [DTT4261T]

Delrin replacement spur for TT01 drivetrains

This Delrin 42-pitch 61-tooth spur gear is a direct aftermarket replacement for TAMIYA TT01 gearboxes, supplied as model DTT4261T. It is aimed at routine spur replacement, gearbox maintenance, and straightforward ratio changes during setup.

The gear is made to mesh with standard 42-pitch pinions used in TT01 builds; when fitting, check pinion-to-spur mesh and clearance to prevent premature wear. Use correct shimming and inspect the spur hub and associated bearings during regular service.

Choosing a 61T spur alters final drive ratio to balance acceleration and top speed depending on motor and ESC setup. Delrin provides a lower friction engagement compared with some other plastics, often reducing gear noise and delivering smoother spool-up characteristics.