Concave pin profile

The Xair pump features everything you expect to find on higher priced models

anti-pong technology to keep things fresh and a 4-way stretch construction to boost fit and breathability

Weight: It weighs 117gms

leverage is lacking a fair bit

Maxxis Flyweight Tube - 60mm Presta Removable Valve Core - 1.9-2.125 Inch - 26 Inch Images Uploaded - Ready for Review Concave pin profileThe Flyweight tubes are for the lightest offerings from Maxxis. For XC riders and anyone else looking for the lighest setup possible. Who's this item for: These are for the weight weenies looking for every advantage on their XC race machine and are willing to sacrifice protection over weight savings. Removable valve core: Yes, the valve cores are removable. Tube wall thickness: 0. 45mm Weight: 26 x 1. 9 2. 125: 96g 27. 5 x 1. 9 2. 125: 110g 29 x 1. 9