This large (120mm-diameter) wheel can be used as a replacement part or for custom robots that need to traverse complex, rugged terrain. The black tire is made of soft, spiked rubber for increased traction. An included adapter lets you easily mount the wheel to motors with a 4mm output shaft, such as the 25D mm metal gearmotors . The two adapter screws require a 3mm hex (or Allen) wrench. This wrench is not included, but can be found in most standard metric hex wrench sets.
Wicked Spiked All Terrain Tractor Tyres – Chrome Hub
These wicked spiked tractor tyres are ideal for all terrain robots. These wheels are 120mm diameter and 60mm wide. The hubs are Chrome in colour.
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