Schwalbe Aerothan TPU Tube 29x2.1-2.4" PV 40mm CheckoutSpec= 20X2.10 The most common mounting is

The most common mounting is in the big ring position because of chainstay clearance

providing an extra level of ankle support

protecting delicate seals from damage

A great inexpensive ski for in track use at the nordic center and out of the nordic center light touring

efficient ride that transitions seamlessly to on-snow performance

Schwalbe Aerothan TPU Tube 29x2.1-2.4" PV 40mm CheckoutSpec= 20X2.10 The most common mounting isSchwalbe Aerothan Tube 29 x 2. 1 2. 4 40mm Presta Valve. Developed in cooperation with BASF and with experts from the German plastic manufacturing industry the Aerothan tube emerged to not only meet all the requirements of a high end bicycle tube but to exceed them. Fully light weight right to the valve about 40% less weight than a comparable Schwalbe extra light tube Puncture protection newly defined the material itself prevents sudden air loss