About the Sumo Robots
The Lynxmotion 3kg Sumo Robot Kits are perfect for getting a jump start on your next competition. The main problem people face when getting started in Robot Sumo is with the mechanical construction of the rolling chassis. Lynxmotion has several rolling chassis kits specifically designed for Robot Sumo. Choose between competiton tested 2WD, 4WD, or 6WD designs. To further fine tune your robot choose between two voltages, and two gear reductions for the motors. Lynxmotion is currently developing combo kits for all of the sumo robots. We are including all of the electronics to make the robots autonomous. However, the robot will require additional work on the scoop before it will be competition ready. These robots actually perform very well, having received 1st place at several events. Images to the right are some of the prize winning sumos that were built from the kits.

The Mechanics
The robot chassis is made from ultra-tough laser-cut Lexan structural components, and custom aluminum brackets. The body panels are available in black, bronze, or clear. The robot includes 12vdc gear head motors, with either 30:1 or 50:1 gear reduction.

Controlling the Robots
The robot can be controlled with a dual motor controller and an RC set for remote control operation. Autonomous operation can be achieved by adding a dual motor controller, a microcontroller and sensors.

Powering Options
Check out our batteries and chargers here.

To keep costs down we are not providing printed Assembly Guides. They are provided online, so you will need to print them when you order the kits. By providing the Assembly Guides online we can provide more detailed and up to date information than the old hardcopy method allowed.

Sumo Robots Specs
  • Maximum Weight = 3kg (6.6lbs)
  • Maximum Height = No Limit
  • Maximum Width = 20cm (7.875")
  • Maximum Length = 20cm (7.875")

1st Place! Cheeky-san!

1st Place! Mr. Roboto!

1st Place! Overkill!

Assembly Guides
& Tutorials



Image Gallery


Here is what US Sumo Robot Guru Bill Harrison has to say about these kits!

"Lynxmotion has some nice pictures and a complete on-line set of instructions for putting the bases together. You still have to do the sensors, electronics or anything else you may want on the robot (like a scoop or such) yourself. These are intended just to get you some motors and wheels mounted to a robot body and let you go from there. Let's face it, the mechanics of setting up motors and the drive train is the hardest part for most of us, so these kits will be very useful. And because these are only the core of the robot, there are still sure to be a vast variety of robots that show up at competitions, even if they start with these kits. So be creative. Lynxmotion is working on more of these kits, so check their web site from time to time. Beyond just looking at the web site and what Lynxmotion has e-mailed me, I can't say. I have not built up a kit or even seen one face to face. But if these are anything like the competition robots I've seen of the designer's, they are sure to be great robot bases. I'm excited that Lynxmotion is supporting Robot Sumo and Robot Sumo builders by providing something that is useful to the builders."

Viper Sumo Kit (no electronics) Viper Sumo Kit (no electronics)
  • Affordable 2WD Sumo Rolling Chassis
  • Bullet Proof Laser-cut Lexan
  • Aluminum Reinforced Chassis Design
Model Number: SR4-KT
Price: $116.49
 On Sale For: $42.36 

Predator Sumo Kit (no electronics) Predator Sumo Kit (no electronics)
  • Extreme 6WD Sumo Rolling Chassis
  • Bullet Proof Laser-cut Lexan
  • Aluminum Reinforced Chassis Design
Model Number: SR2-KT
Price: $269.17 

Stomper Sumo Kit (no electronics) Stomper Sumo Kit (no electronics)
  • Powerful 6WD Sumo Rolling Chassis
  • Bullet Proof Laser-cut Lexan
  • Aluminum Reinforced Chassis Design
Model Number: SR1-KT
Price: $246.07