Tamiya 15516 FM-A Chassis Setting Gear Pack for Mini 4WD Racers  [15516]

Fine tuning and setup tips for the Tamiya 15516 FM-A Chassis Setting Gear Set

Racers and hobbyists who want more control over Mini 4WD performance will find the Tamiya 15516 FM-A Chassis Setting Gear Set a practical upgrade. The kit helps you dial in speed and torque on FM-A style machines so you can adapt to different track layouts and race strategies.

Choice of gear ratios to match track needs

This setting gear set includes five selectable ratios: 3.5:1, 3.7:1, 4:1, 4.2:1 and 5:1. Those options let you prioritise quick acceleration for technical sections or sustained top speed for long straights. A 1.4mm hollow lightweight propeller shaft is included to reduce rotating mass and improve responsiveness.

Model compatibility and durable components

The parts fit FM-A, Super X and Super XX chassis, giving flexibility across common Mini 4WD frames. A reinforced 8T pinion and G-2 gears add strength for racing loads, while the supplied 620 ball bearing and fluorine coated gear shaft help cut friction for smoother runs.

Simple installation and track testing

Parts are laid out for straightforward assembly, allowing quick swaps during practice. This makes it easy to test different gear setups and find the balance you prefer between acceleration and top end.