Product Description Specifications:Application:Cross Country, Road, GravelTyre Dimensions:700 x 23-32, 700 x 33-50Inner Tube Material:butylValve Type:SV / Presta 48 mm, SV / Presta 60 mmModels:700 x 23-32 SV / Presta 48 mm Valve Type:SV (Sclaverand/Presta)Valve Length:48 mmManufacturer Number:2216 700 x 33-50 SV / Presta 48 mm Valve Type:SV (Sclaverand/Presta)Valve Length:48 mmManufacturer Number:2246 700 x 33-50 SV / Presta 60 mm Valve Type:SV (Sclaverand/Presta)Valve Length:60 mmManufacturer Number:2247Information - Valves:Tubes are available with various valve types. Choosing a valve is dependent on application and the rim's valve hole diameter. SV / Presta Valve: Synonyms: Sclaverand Valve (SV), French Valve, Presta ValveOuter Diameter: 6.5 mmContents:1 x Ultralight Low Lead 28" Inner Tube Manufacturer: Maxxis International 545 Old Peachtree Rd NW Suwanee GA 30024 USA info@maxxis.de Distributor: bikemarketing BMG GmbH Provinostr. 52 86153 Augsburg Germany contact@maxxistires.de