Quote Originally Posted by Hoyle

But... I do wonder. Composite is great stuff... but it's NOT forgiving. When you do over-stress it - running over a branch or something, it could very well take damage that won't show immediately, but which could become very hazardous 20-30,000 KM down the road.
rubber air tires have the same problem so thats really not an issue. belts can break without notice, and sidewalls are very thin. amazing how well they do hold up

i still think these airless tires will have trouble in the winter. they better have some sort of super resin to hold up when its -40F