Thermoplastic polyurethane changes the calculus of tube performance entirely. Where butyl tubes balance weight against durability and latex tubes trade air retention for suppleness, TPU delivers on all fronts simultaneously. Vittoria's Ultra Light Speed Tube weighs 30 grams with a 0.3mm wall thickness, cutting 70% of the weight compared to a standard butyl tube while reducing rolling resistance by 14%. The material holds air longer than latex, packs smaller than either alternative, and can be patched with the included repair kit when punctures occur.

The weight savings happen where they matter most: rotating mass at the wheel. Dropping 70-80 grams per wheel from tube weight alone affects acceleration response and climbing efficiency in ways that static weight elsewhere on the bike cannot match. For race day applications where every watt counts, the Ultra Light Speed delivers measurable performance gains at a cost-per-watt ratio that's difficult to beat with other equipment upgrades. The supple TPU material also conforms to the tire casing without the internal friction that butyl creates, contributing to that rolling resistance reduction.

Road applications require disc brakes exclusively. The thin TPU construction cannot withstand the heat generated by rim brake pads during extended descents, which would cause the material to fail. If you're running rim brakes on a road bike, this tube isn't compatible with your setup. BMX applications don't generate the same sustained braking heat, so rim brake compatibility is maintained for the 20" size.... Read More