Tamiya 15516 FM-A Tunable Gear Set for Mini 4WD  [15516]

Setup and tuning guide for the Tamiya 15516 FM-A Chassis Setting Gear Set

For people who race Mini 4WD and want straightforward tuning options, the Tamiya 15516 FM-A Chassis Setting Gear Set provides practical adjustments to your FM-A family cars. It is aimed at improving adaptability across varied track types.

Selectable ratios for precise performance tuning

The kit supplies five gear ratios: 3.5:1, 3.7:1, 4:1, 4.2:1 and 5:1 so you can tune for stronger acceleration or higher sustained speed depending on the circuit. The included 1.4mm hollow lightweight propeller shaft reduces rotating weight for crisper response.

Cross chassis fit and quality parts

This setting gear set fits FM-A, Super X and Super XX chassis, offering broad compatibility. It features a reinforced 8T pinion and G-2 gears for durability, along with a 620 ball bearing and fluorine coated gear shaft to lower friction and smooth operation.

Assembly notes for quick swaps

Components are designed for easy fitting so you can change gear ratios between practice runs. That flexibility helps you quickly evaluate which setup works best for cornering and straight line speed.