This is a category only with mobile robots bases that you could directly build and use for competitions, classes or learning at home.
Building instructions for a LEGO Mindstorms EV3 Robot Base with 56mm Tires, Version1. The robot base could be used in robotics competitions as FIRST LEGO League, World Robotics Olympiad and others
This robot was built by your request. It includes NXT large wheels. The Large LEGOO Mindstorms wheels will give you a faster robot, but be careful, because it will not be that accurate.