[Oldbikerider]

On a related question, does anyone know what the safe working speed is with the AndyMark wheels? I've searched but can't find anything. I'm thinking that some bursting strength calculations are necessary here.

We've been testing with some 10 inch OD "highway" treaded mobility scooter tires mounted on 4 inch go-kart wheels. At 1600rpm there is significant tread growth and they start to get unstable in balance. The two wheels also appear to feed vibrations to each other in complex ways.

I wonder what actually fails first. Would the tire tread just catastrophically fail, or would bits start shedding more gently? I suspect the former.

Graham.