It also has a hex shape to the flange to stop it from rolling away

3D shaped compression fit

Waterproof Rating: Both the light head and battery

but would be great for shuttle days at the bike park or free ride as well

Maxxis Welterweight Tube - 29 Inch - Schrader - 1.75-2.40 Inch - 48mm Back in Stock It also has a hexRide with confidence! Maxxis Welter Weight tubes are engineered for aggressive riders who require durability in their inner tubes. Be sure to keep a few spares on hand! Who's this item for: Aggressive riders who want a tube with good puncture resistance without the extra weight of a DH tube. Removable valve core: Yes, the valve cores are removable. Tube wall thickness: 0. 80mm Weight: 26 x 2. 2 2. 5: 212g 27. 5 x 2. 2 2. 5: 223g 29 x 1. 9 2. 35: 178g