Before them, I was using Pololu motors, they are nearly 2 times bigger and I use this 300 Rpm at 4S (2+2) lipo total 16,8Volts, doesn't burn.

I used it in my mini sumo robots.The response time of the sensor is very good, the opponent can detect immediately.

I used it in our own competitions. Better than lots of wheels models. We want bigger sizes too! :)

We use them at minisumo and sumo robots. One tip, Don't use them as analog. Black & White is very sharp transition for directly using with digital inputs.

Greetings from Mexico! The information inside is really enlightening. I would recommend to all competitors for better sumo robots.

I used this for attaching Offroad wheel to 5mm shaft motor. I had to drill little for making center hole to 5mm.

This motors are little beefy. We cut it's outer shaft from 3mm. And it fit for minisumo, easy operation. I recommend. Also it acceptes high voltages very well.

This wheels are fantastic! With only changing the wheels my robot's speed and manueverability increased %20!.

This gear combination gives very high torque with DCX and RE35 model motors. We recommend to robot sumo competitors. Thanks Jsumo.

We were using old bulky Maxon RE40s. Now we migrated our projects to RE35 motor for due to low weight. This extra weight helps us for adding new mechanism and strengthening the robot body.