Product Description Robust yet lightweight: Ultralight Tubes by Maxxis With a wall thickness of 0.60 mm, Maxxis Ultralight tubes are hardy enough for the toughest World Cup, yet they are only half the weight of standard tubes. Specifications:Application:Cross CountryETRTO: 32-559 - 54-559 Tire Dimensions:26 x 1.25 - 26 x 2.1"Inner Tube Material:butylValve Type:AV / Schrader 36 mm, SV / Presta 36 mm, SV / Presta 48 mmModels:26x1.9-2.25 AV / Schrader 36 mm Valve Type:AV (Auto / Schrader valve)Valve Length:36 mmManufacturer Number:2201 26x1.5-1.75 SV / Presta 36 mm Valve Type:SV (Sclaverand/Presta)Valve Length:36 mmManufacturer Number:2202 26x1,9-2.1 SV / Presta Valve Type:SV (Sclaverand/Presta)Valve Length:36 mmManufacturer Number:2200 26x1.5-1.75 AV / Schrader 36 mm Valve Type:AV (Auto / Schrader valve)Valve Length:36 mmManufacturer Number:2203 26x1.9-2.125 SV / Presta 48 mm Valve Type:SV (Sclaverand/Presta)Valve Length:48 mmManufacturer Number:2206 26x1.5-1.75 SV / Presta 48 mm Valve Type:SV (Sclaverand/Presta)Valve Length:48 mmManufacturer Number:2202FV48 26x1.5-2.5 SV / Presta 48 mm Valve Type:SV (Sclaverand/Presta)Valve Length:48 mmManufacturer Number:2230 26x1.5-2.5 AV / Schrader 36 mm Valve Type:AV (Auto / Schrader valve)Valve Length:36 mmManufacturer Number:2231Valve InformationTubes are available with various valve types. Choosing a valve is dependent on application and the rim's valve hole diameter. AV / Schrader Valve: Synonyms: Auto Valve (AV), Schrader ValveOuter Diameter: 8.5 mm SV / Presta Valve: Synonyms: Sclaverand Valve (SV), French Valve, Presta ValveOuter Diameter: 6.5 mmContents:1 x Maxxis Ultralight 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