Product Description Stable, 1.5 mm thick inner tube from Continental for downhill. Specifications:Application:DownhillETRTO:57-559 to 70-559Tyre Dimensions:26" x 2.5 to 26" x 2.7Inner Tube Material:butylValve Type:AV / Schrader 40 mmModels:26x2.5-2.7 AV / Schrader 40 mm Valve Type:AV (Auto / Schrader valve)Valve Length:40 mmManufacturer Number:0181771Valve 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 Continental MTB 26" Downhill inner tube Weight: universal | 57-559 to 70-559 | Schrader Valve (AV) | 26x2.5-2.7 Schrader 40 mm | 40 mm: 435 g Manufacturer: Continental Reifen Deutschland GmbH Continental-Plaza 1 30175 Hannover Germany info@conti.de