Fly Bikes Cobra Tube
I ran across these tubes that the BMX riders are using. It's a tube that can be changed without removing the wheel.
I thought it would be a interesting product for MB's since it would be a lot easier to change a tube without removing the wheels and chain. Not having to deal with the chain on the road would be a great plus.
I do not know if the tubes come in 24-26", but sure would be cool if they did.
YouTube - AlansBMX Episode 17