Quarq TyreWiz 2.0 Valve Stem Pair - PACK B PDP|PLP|Brake Rotor Type comes with an included helmet

comes with an included helmet mount

Despite its compact size

is low profile and breathable which provides excellent protection without sacrificing comfort or adding bulk

and is often used as a pivot bearing

four-way stretch fabric with a DWR finish to help it shed water

Quarq TyreWiz 2.0 Valve Stem Pair - PACK B PDP|PLP|Brake Rotor Type comes with an included helmetDifferent length valve stems allow TyreWiz 2. 0 to fit on any depth rim Valves are modifiable with different rim seals to fit on any rim shape Lightweight aluminum construction Includes different styles of rim seals (round, square and o ring) Includes 2 valve stems Instruction manual on how to size up the right Valve Stem can be found here at the SRAM website.