Front Gear Box Upgrade for TAMIYA Hotshot / Super Hotshot / Boomerang / Bigwig - JR-THS12-GU Aluminum by Jazrider  [JR-THS12-GU]

Tamiya Hotshot / Super Hotshot / Boomerang / Bigwig Aluminum Front Gear Box (Gun Metal)
Price:
AUD$42.79
Brand:
JAZRIDER
Model:
JR-THS12-GU
Condition:
Brand New
Available in shop
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Front gearbox upgrade to sharpen drivetrain response

This aluminum front gear box replaces the factory plastic unit on TAMIYA Hotshot, Super Hotshot, Boomerang and Bigwig chassis. As a direct-fit hop-up, the metal housing reduces flex and helps keep gears in line, which can affect steering feel and drivetrain consistency when tuning.

The part fits only the models listed and is finished in gun metal. Notes focus on installation effects and tuning influence rather than raw performance claims; it is meant for hobbyist use on model-grade transmissions.

Specifications

  • Item: Front Gear Box
  • Material: Aluminum
  • Model Number: JR-THS12-GU
  • Compatibility: Tamiya Hotshot / Super Hotshot / Boomerang / Bigwig

Install this aluminum front gear box when you want a firmer front housing to support tuning changes or improve drivetrain consistency; confirm clearances and alignment before completing installation.

Will switching to aluminum change steering precision?

A stiffer front housing can improve repeatability in the drivetrain, which may help steering consistency. Fine-tune gear mesh and suspension settings after fitting to realise potential handling gains.

Does the added weight affect balance or tuning points?

Aluminum adds some mass to the front; this can slightly alter balance. Consider this when adjusting spring rates or ride height, and test on-track to evaluate handling changes.

Should I re-check drivetrain angles after installation?

Yes. After fitting the metal housing, inspect gear mesh and bearing alignment, and run a short test session to confirm settings before final tuning sessions.

Is this suitable when upgrading other drivetrain parts?

The aluminum housing works well with incremental drivetrain upgrades, but verify combined clearances and tolerances when mixing aftermarket gears or bearings from multiple suppliers.

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