Panaracer’s R-Air Ultralight inner tubes weigh less than many latex tubes. Produced with a special Butyl compound, they do not lose air and do not sacrifice puncture resistance.
47% more elasticity over standard butyl tubes Compatible with 20 x 7/8 and 20 x 1-1/8 (451) Valve Length: 32mm Valve: Presta Lightest 451 Tube in the Market Made in Japan Approx Weight: 60g
