Product Description High quality bicycle tubes with 0.80 mm wall thickness. The standard inner tube for XC, Freeride, 4X, BMX, Trekking, City and Race. Specifications:Application:BMX, City & TouringETRTO:49-507Tyre Dimensions:24 x 1.9 - 2.125" , 24 x 1.5 - 2.5"Inner Tube Material:butylValve Type:AV / Schrader 36 mm, AV / Schrader 48 mmModels:24x1.9-2.125 AV / Schrader 36 mm Valve Type:AV (Auto / Schrader valve)Valve Length:36 mmManufacturer Number:2330Models:24x1.5-2.5 AV / Schrader 48 mm Valve Type:AV (Auto / Schrader valve)Valve Length:48 mmManufacturer Number:2325Valve 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 mmContents:1 x Maxxis Welterweight 24" 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