Panaracer:
At only 65g each, Panaracer’s R-Air Ultralight innertubes weigh less than many latex tubes. Produced with a special Butyl compound, they do not lose air and do not sacrifice puncture resistance.
FEATURES
- 47% more elasticity over standard butyl tubes
- Size: 700 x 22-28c
- Valves: 48mm / 60mm
- Weights: 77g / 78g
- Made in Japan