Bontrager Self-Sealing Thorn-Resistant Schrader Valve Bicycle Tube

Self-sealing and nearly puncture proof

Protect yourself from flats with these specially-designed tubes that instantly seal small hole punctures and feature asymmetric design to give more puncture protecting material underneath the tread, exactly where you need it.

Product details
- 4.1mm thickness (tread side)
- Asymmetric extrusion puts extra rubber along tire sidewall and tread zones
- 100% inspected for guaranteed quality