Mammut Alpine Chalk Bag Mountaineering 2Wide Hook and Loop Front Gear Ratio:3.8:1 2.0:1 2Wide Hook and Loop Front Closure 3 in Weight 17 lb Max tire width 3 in Max wheel size (diameter) 29 in Max wheelbase 1300 mm Fits round frame dimensions All Thru axle compatible ✓ Carbon frame compatible ✓ Fits roof racks with 20x20 mm T tracks ✓ Fits roof racks with 24x30 mm T tracks ✖ Fits Thule WingBar Evo ✓ Fits Thule AeroBlade ✓ Fits Thule SquareBar ✓ Fits Thule ProBar ✓ Fits Thule Xsporter Pro ✓ Fits Thule TracRac Truck ✓ Fits Thule TracRac Van ✓ One Key System compatible ✓ Color Black Aluminium Model number 599000 To systematically improve working conditions throughout its supply chain The outer materials are made from high quality recycled polyester with dense fleece on the inside for reduced dust formation