Here is the full copy package for both valve lengths under the TPU Road Tube name. Since the only difference between the two versions is valve length and a 2g weight difference, the copy is unified with both specs called out where relevant. Tech SpecsSpecValueValve TypePresta, alloy stem, removable coreValve Length[65mm] 65mm, [80mm] 80mmCompatibility700 x 25-35cBrake CompatibilityRim and discMaterialThermoplastic polyurethane (TPU)Claimed Weight[65mm] 37g, [80mm] 39gUseOn-road and off-roadThorn Resistance70% improvement over Turbo TubeRolling Resistance5% lower than Turbo TubeBackcountry ToplineThe Specialized TPU Road Tube is the lightest upgrade your road bike can makeSixty percent lighter and faster rolling, the Specialized TPU Road Tube earns its placeThe Specialized TPU Road Tube brings serious performance to every kilometer you rideThorn-resistant and featherweight, the Specialized TPU Road Tube is built to keep rollingWhat Our Gearhead(R) Experts Are Saying:"I put these in before a big century ride and the weight difference at the wheel was immediately noticeable on the climbs. The thorn resistance is a genuine confidence boost on roads that aren't always as clean as you'd like, and the removable valve core made a mid-ride top-up completely painless."The road is long, the watts are finite, and the smartest gains are the ones hiding in plain sight. The Specialized TPU Road Tube is one of those upgrades that changes how the whole bike feels, pulling real weight out of the rotating mass where every gram has an outsized effect on how lively and responsive the ride feels from the first pedal stroke. Thermoplastic polyurethane construction brings this tube in 60% lighter than a standard butyl option, with 5% lower rolling resistance and 70% improved thorn resistance for roads that don't always cooperate. Available in 65mm and 80mm valve lengths to suit a wide range of rim depths, both versions feature an alloy Presta stem with a removable core for clean inflation...