Tamiya 15456 JR AR Chassis Gear Setting Kit  [15456]

Tamiya 15456 JR gear set overview for AR chassis racers

The Tamiya 15456 JR Setting Gear Set is a flexible replacement part made for Mini 4WD builders who want to dial in performance on AR chassis machines. Multiple gear ratio choices let competitors tune acceleration and top speed to match a race circuit.

Compatibility and performance traits

This gear set fits a range of chassis platforms, including AR, VS, Super-II, Super TZ, and Super TZ-X. The AR chassis, with its front motor layout and aero-focused layout, benefits from the selectable ratios so drivers can prioritise quick launches or higher top speed depending on course demands.

Gear range and upgrade details

With ratios spanning 3.5:1 to 5:1, the set gives practical options for boosting straight-line speed or improving corner exit. The package also includes a fluorine-coated gear shaft and a 620 ball bearing to reduce friction and promote smoother gear rotation.

Fitting advice and notes

The components include a 1.4mm hollow lightweight propeller shaft plus reinforced pinion and G-13 gears that are straightforward to fit. These parts integrate with standard AR-type setups, making ratio swaps fast when preparing for race day.