TPU Road Tube

What Our Gearhead® Experts Are Saying:

"These are the tubes I recommend when a rider wants a genuine performance upgrade without going fully tubeless. The 65mm works perfectly on standard rim profiles, and the 80mm takes care of deeper carbon sections without any pump head clearance issues. At 37g and 39g respectively, the rotating weight savings over butyl are significant, and the 5% rolling resistance improvement is a real number you feel on sustained efforts."

Rotating weight is where marginal gains become immediately tangible, and the Specialized TPU Road Tube is one of the clearest expressions of that principle available for a 700 x 25-35c road build. At 37g for the 65mm version and 39g for the 80mm, both options represent a substantial reduction from butyl tubes in the same size range, and the performance advantages extend well beyond weight alone.

Thermoplastic polyurethane delivers 5% lower rolling resistance compared to Specialized's own Turbo Tube baseline, a figure that translates into real energy savings across the duration of a long ride or race. Thorn resistance comes in 70% higher than the Turbo Tube as well, which, on roads shared with agricultural traffic or bordered by hedgerows, makes a meaningful difference in reliability over the course of a season. The alloy Presta valve stem is built for long-term durability with a removable core that accepts standard valve tools and supports sealant injection for riders who want additional flat protection inside a traditional tube format.

The choice between 65mm and 80mm valve lengths covers the full range of contemporary road rim profiles. The 65mm version suits standard and moderately deep rims where pump head access is straightforward, while the 80mm is the correct specification for deeper carbon sections where a shorter valve creates clearance problems at the pump chuck. Both versions are fully compatible with rim and disc brake wheelsets, making the Specialized TPU Road Tube a clean, no-compromise upgrade for any performance-oriented road build looking to shed grams and gain speed at the same time.