Product Description Weight is the natural enemy of the racing cyclist. With the 28" Airkomp Ultra-Light, professionals and amateurs alike benefit from an inner tube weighing less than 80 g (A1 racing bike version). Specifications:Application:RoadETRTO:18/25-622Tyre Dimensions:28 x ¾" - 28 x 1.0"Inner Tube Material:butylValve Type:SV / Presta 40 mm, SV / Presta 52 mm, SV / Presta 60 mm, SV / Presta 80 mmModels:18/25-622 SV / Presta 40 mm Valve Type:SV (Sclaverand/Presta)Valve Length:40 mmManufacturer Number:916182 18/25-622 SV / Presta 52 mm Valve Type:SV (Sclaverand/Presta)Valve Length:52 mmManufacturer Number:422204 18/25-622 SV / Presta 60 mm Valve Type:SV (Sclaverand/Presta)Valve Length:60 mmManufacturer Number:125000 18/25-622 SV / Presta 80 mm Valve Type:SV (Sclaverand/Presta)Valve Length:80 mmManufacturer Number:837288Features:good puncture protectionreally good airtightnessInformation - Valves:SV / Presta Valve: Synonyms: Sclaverand valve (SV), Presta valve, French valveOuter Diameter: 6.5 mmMax. Pressure: 15 barContents:1 x Michelin Aircomp Ultra-Light Road (A1) inner tube Weight: universal | 18-622 to 25-622 | Presta Valve (SV) | 18/25-622 SV 60 mm | 60 mm: 78 g universal | 18-622 to 25-622 | Presta Valve (SV) | 18/25-622 Presta 80 mm | 80 mm: 81 g Manufacturer: Michelin Reifenwerke AG &Co. KGaA The Squaire 17 – Am Flughafen 60549 Frankfurt am Main Germany info@michelin.com