Mars 25:1 Gearbox + RB1806 2000KV Assembly


Availability: In stock

Operating on a 1-4 working day leadtime! :)

Batman and Robin. Mario and Luigi. Mars 25:1 planetary gearbox and Mars RB1806 2000KV brushless motor. A list of iconic duos.

These preassembled drive units pair our most powerful Mars motor with the Mars gearbox, making for an extremely compact, rugged and powerful gearmotor for small-scale projects. Combine this setup with our Mars AM32 35A motor controller and Mars hubs and your next project won’t just move, it’ll shift!

When you order a preassembled Mars system, you’re getting a combo built to our own standards, which means it’s built to last. We pack the gearbox with grease, threadlock the M2 mounting screws and ensure everything spins freely. All you need to do is drop the unit into your project!

A single package contains:

  • 1x gearbox + motor assembly
  • 1x M3*5 high tensile caphead screw and M3*9mm washer (a shaft end bolt)

The key technical details are:

  • Dimensions (D*L): ⌀23.5*~40.5mm + 7.3mm shaft
  • Shaft dimensions (D*L): ⌀6*25mm + 5.5mm D-shape and M3 end thread
  • Weight: 75g
  • Mounting holes: M3x4 (~4mm deep) for face-mounting
  • Input voltage: 2-4s (6-17V)
  • Operational current draw: 3-8A
  • KV rating (RPM per volt): 2000 (e.g. ~1,000RPM at the gearbox @ 12V)
  • Wires: 24AWG 125mm long (with tinned ends)

Click here to download a 3D model of the Mars 25:1 gearbox + RB1806 motor assembly (opens Google Drive)

Essential dimensions:

The Mars range is always expanding. Our goal is to make high quality small-scale hardware accessible for all budgets and skill levels. Have a suggestion for a new product? Please get in touch –

Weight 0.100 kg
Dimensions 5 × 3 × 3 cm
Mars 25:1 Gearbox + RB1806 2000KV Assembly

Availability: In stock

Scroll to Top