Tamiya M05 Fast Gear Set 33/21 & 35/21 M05-02 by 3Racing  [M05-02]

Tamiya M05 Fast Gear Set - 3RACING M05-02
Price:
USD$6.30
Brand:
3Racing
Model:
M05-02
Condition:
Brand New
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3Racing tuning gear set for M05

This gear kit provides alternate spur and pinion groupings for the Tamiya M05 M-chassis, supplying two higher overall ratios than the stock 37/21. The pack's 33/21 and 35/21 options are intended for tuners seeking improved top speed while managing motor load and drivetrain stresses.

Recommended pinion match-ups are: 37T spur with 16T, 18T or 20T pinions; 35T spur with 18T, 20T or 22T pinions; 33T spur with 20T, 22T or 24T pinions. Use these clusters to calculate the target final drive and select a pinion that keeps motor current and temperatures within safe limits.

Installation and service notes: set accurate gear mesh and minimal backlash to reduce tooth fatigue, verify diff condition and bearing smoothness, and retest motor/ESC temps under load after any ratio change to validate the setup for sustained high-speed operation.

How do these ratios affect motor current draw?

Higher overall gearing increases load at the motor for a given acceleration; choose a pinion that keeps current peaks within your ESC and motor continuous ratings and monitor temperature during shakedown runs.

What inspection items are critical after fitting?

Check spur and pinion tooth contact pattern, confirm bearing preload and diff lubrication, and run short tests at moderate speed to ensure no abnormal heating or noise appears.

Recommended workflow for tuning final drive?

Start with the conservative pinion in the suggested group, log motor/ESC temps and lap times, then incrementally change pinion size while checking drivetrain wear and thermal margins to reach optimal top speed safely.