Not exactly...thrmaln said:Does it mean it is a tubeless wheel like on Mountain bikes.
No. Tufo tires have no thread, therefore, are not "sewups"Akirasho said:.....One notable exception is the Tufo tubular clincher... which is essentially a sewup with a bead that engages a clincher rim's hook.
NASCAR is likely to use tubes only because of tradition. They still race in steel wheels, they still use a differential that's out of a late 60's Lincoln, and the cars are all front-engine, rear-drive. NASCAR is essentially a bunch of luddites.Akirasho said:.....NASCAR requires an innertube for safety reasons).