Cobra Minisumo Wheels are top-quality competition wheels.

- The fiberglass-infused nylon hubs are designed with a ring of captive holes for locking the tire in place.
- Tire tread composed of Shore A20 polyurethane makes these the highest traction wheels you can buy.
- The wheel is designed to envelop a 16mm gearbox. Perfect where length is a concern. (Two Gold Spark motors with these wheels will fit into the 10cm width limit of minisumo events.)
- An extra-long setscrew allows you to easily tighten the wheels onto a 3mm motor shaft.
- Setscrew is accessed through tire. (0.050" hex wrench needed)

Specs:
Hub material: Fiberglass-reinforced nylon
Tire material: Shore A20 polyurethane, professionally vacuum-degassed
Diameter: 2.86cm (1.125")
Width: 2.16cm (0.85")
Inner diameter: 1.76cm (0.688")
Shaft bore: 3mm (0.118")
Weight: 12.6grams each (0.44oz)

Tip: Clean the tires with alcohol wipes before each match for optimal traction.