Continental Standard tube for road race - available with presta valve only. Fitting for tire dimensions 18 to 25-622 (700x18C to 25C).

Compatible with following tire dimensions:
20-622 → 25-622 (700 x 20C → 700 x 25C)
20-630 → 25-630 (27 x 3/4 → 27 x 1)