Stan's NoTubes

Stan's NoTubes Tire Sealant, 32 oz

Stan's is the original mountain-bike tubeless sealant and remains the default answer for anyone setting up or maintaining tubeless tires. The 32-ounce bottle is the economical size if you run tubeless on a fat e-bike, where each tire swallows a lot more sealant than a road tire. It seals small punctures quickly and needs topping up every few months as it dries. Many e-bike riders also inject it into standard tubes through a removable valve core as a budget self-sealing setup; that works, but it is not what the bottle is for.

Best for: Tubeless fat, mountain and gravel e-bike setups · Riders who top up sealant regularly · Injecting into tubes with removable valve cores for puncture insurance