Product Description Specialized Roubaix Pro 28" tyre - fast, cushioning, grippy Roubaix Pro Road folding tyre from Specialized is a fast, high traction all-rounder with the GRIPTON® compound. Compared to the Roubaix Armadillo Elite, its puncture protection is slightly lighter, but still proves to be efficient on poorly paved roads. Also helpful on this type of surface are the damping properties resulting from the wider tyre cross-section. Specifications:Application:RoadGround Conditions:abrasive, rough asphaltType:folding tyreTubeless System:noneTechnical Information:Rubber Compound:GRIPTONCarcass:120 tpiSidewall:Black SkinPuncture Protection:Endurant, BlackBeltModels:23-622 (700x23C): Dimensions:700 x 23cETRTO:23-622Air Pressure:7.9 - 8.6 barManufacturer Number:0001-2150 25-622 (700x25C): Dimensions:700 x 25cETRTO:25-622Air Pressure:5.9 - 6.6 barManufacturer Number:000E-2151Features:first-class all-round road bike tyrefast, grippy and wider cross-section for the optimum damping propertieslight, effective puncture protection23 mm and 25 mm tyre width based on standard rims with a 17 - 19 mm rim width (on Specialized rims with a 21 mm rim width the tyre is 2 and 3 mm wider respectively)Technology:GRIPTON® GRIPTON is an exclusive rubber compound for Specialized tyres, based on synthetic rubber and an activated silica compound. It was designed to filter out low and high frequencies. As the name suggests, this compound provides an outstanding amount of traction and handling in all weather conditions, but this is not its only advantage. It also dampens vibrations, rolls very well and saves weight. GRIPTON tyres are manufactured and tested in a factory operated by Specialized in Vietnam. Contents:1 x Specialized Roubaix Pro folding tyre Weight: black | 28 | 23 mm | 23-622: 260 g Manufacturer: Specialized Germany GmbH Hauptstraße 4 83607 Föching Germany www.specialized.com/contact-us