TAMIYA Hotshot Series Aluminum Rear Gear Box (JR-THS13-RD) compatible with Hotshot/Boomerang/Bigwig by Jazrider  [JR-THS13-RD]

Aluminum rear gearbox for the Hotshot line-up

This rear gear box is an aluminium replacement part made for TAMIYA Hotshot series models. Constructed from red anodized aluminum, it substitutes the stock plastic housing to reduce flex and offer a firmer support for rear drivetrain components, while keeping internal gear ratios unchanged.

The item uses the factory fastener and locating layout so it works with the original spur and pinion setup. Be sure to check clearances when using very low-profile suspension components or aftermarket motor mounts, and confirm shaft alignment before applying final torque. Generally no cutting or trimming is necessary with the listed compatible chassis.

In practical use the part helps to stabilise rear geometry under load, reducing drivetrain lash and delivering a more consistent throttle response when cornering or after jumps. This product is intended for model vehicles only.

Compatible Models

• Tamiya Hotshot
• Tamiya Super Hotshot
• Tamiya Boomerang
• Tamiya Bigwig

Pick this aluminium rear gear box when you want improved rear stiffness that keeps original fitment and supports consistent drivetrain performance.