Modular Drive Units. With these modules you can easily construct a mobile platform that is exactly the length and width you need.

The tube houses a two stage chain & sprocket speed reducer and a 4" wheel. It bolts right up to the E–150 motor.

This unit is even easier to use than a motor with a built–in gear head because our modular drive unit includes a wheel. Just bolt it in place, plug it in, and go!

• Fully assembled including motors
• Length: 25.6cm
• Width: 7.55cm
• Reduction ratio: 5.6 to 1
• Weight: 5.1 Lbs
• Sold in pairs