Flat less. Ride more.

Protect yourself from flats with Bontrager Thorn Resistant tubes. Asymmetric design uses thicker rubber on the tread side and thinner rubber elsewhere, which saves weight while maximizing puncture protection.

Product details

1. 4.1mm thickness (tread side)
2. Asymmetric extrusion puts extra rubber along tire sidewall and tread zones
3. 100% inspected for guaranteed quality

   Size	26" x 1.9-2.125"
   Diameter	26"
   Width	1.9-2.125"
   Length	48mm
   Valve	Presta
   ETRTO	50/57-559
   Weight	559g