Q-Tubes 700c presta valve tubes for 700c tires are a dependanble and affordable replacement tube. These tubes are made from Butyl rubber and have a presta valve. Choose from valve stem lengths of 32mm, 48mm, or 60mm depending on your rim depth.
Valve type: Presta (french) valve
ISO Diameter: 622 / road / 29"/630 / 27"
ISO Width: 19 mm/20 mm/21 mm/22 mm/23 mm/18 mm