The Tamiya 53814 NDF-01 2-Speed Transmission Gear Set (54T/57T) OP-814 is a compact upgrade that adds gearing choices without heavy mods. The included 54T and 57T options let you tune acceleration and top speed to suit different driving styles.
Choose the lower tooth option for snappier acceleration on technical routes, or the higher tooth for better speed on long straights. The gears are made to fit the NDF-01 transmission with consistent tooth profile for smooth shifting.
Fitting the gears is a common workshop task for hobbyists and requires only basic handheld tools. Verify gear mesh and clearances after installation to ensure quiet, reliable operation.
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