Tamiya 72009 - Off-Road Inspired 5-Speed Twin Gearbox H.E. STEM Kit  [72009]

Tamiya 72009 - 5-Speed Twin Gearbox H.E.
Price:
AUD$22.80AUD$30.75
Brand:
Tamiya
Model:
72009
GTIN:
4950344720095
Condition:
Brand New
Available in warehouse
Write a review
alt="Tamiya 72009 - 5-Speed Twin Gearbox H.E." title="Tamiya 72009 - 5-Speed Twin Gearbox H.E."
alt="Tamiya 72009 - 5-Speed Twin Gearbox H.E." title="Tamiya 72009 - 5-Speed Twin Gearbox H.E."

Tamiya 72009 - 5-Speed Twin Gearbox H.E. in brief

The Tamiya 72009 5-Speed Twin Gearbox H.E. is a versatile assembly for hobbyists building RC mechanisms and educational projects. It provides five selectable gear ratios - 6.1:1, 15.6:1, 40.2:1, 103.3:1 and 265.6:1 - letting builders trade top speed for torque as needed.

Build style and notable parts

The twin sections are independent and snap together, making it straightforward to customise layouts. Each side has five mounting pieces with three holes apiece so you can rig different mounting schemes. Clutch gears in the 103.3:1 and 265.6:1 setups offer overload protection to preserve gears under strain.

Mounting, wheels and motor options

Hex hubs allow attachment of cruciform crank arms and standard R/C wheels, expanding use in small vehicle projects. Two Type 260 motors are included, and the gearbox is compatible with Type 130 and Type 140 motors to suit different driving needs.

Specifications

  • Length: 88.7mm
  • Width: 86mm
  • Height: 27mm (connected)
  • Weight: 140g (with gear ratio of 265.6:1)

What terrain or surfaces suit this gearbox?

It is best for bench experiments, small wheeled models and light off-road toy rigs. The higher ratios are suited for slow, high-torque tasks rather than high speed on smooth tracks.

How robust is the gearbox in regular use?

For hobby use it is durable, and the clutch gears reduce damage risk under stalls or jams. Avoid exposing it to sustained heavy loads beyond hobby specifications.

Can I use it for a small rover project?

Yes. With hex hubs and wheel mounting options, it is suitable for small rover drivetrains when paired with appropriate motors and a lightweight chassis.

Are spare parts available?

Common replacement parts and motors are available through hobby suppliers. Keep the gear ratios and motor types in mind when ordering compatible spares.

Copyright © 2008-2025 rcjaz.com.au All rights reserved