A. Hi Kevin, thank you for your question. The width is approximately 8.7mm.
Reviews
Good sturdy wheels
Reviewed by: Anthony - 20 June 2017
Great for building roll along cars. Only issue I have is some have sprules on the centre holes and on rim that need cut away.
Great wheels for cars!
Reviewed by: Bright Sparks Science - 30 April 2013
These wheels were perfect for our elastic band car workshop! The children loved the choice of colours and the cars were zooming over the finish line. I would recommend buying some wide elastic bands to go over the wheels for extra grip. Size 61 rubber bands fit these best but unfortunately they are not currently sold by Rapid. Maybe in the future they will?!