40mm Presta valve. A popular choice of tube for general purpose riding.
4 x Continental MTB 26 Mountain Bike inner tube Presta Valve 1.75 to 2.5 Unboxed
Boxed Continental 26 Mountain Bike Inner Tube - Presta Valve 42mm (Set of Two)
2 x Continental MTB 27.5 Mountain Bike inner tube Presta Valve 650B,Black,27.5"
Continental MTB 29" 1.75 - 2.5 Mountain Bike inner tube Presta Valve x 1
Corki Cycles 26 Inch Mountain Bike Inner Tube 4-Pack, 26"x1.75-2.125
Continental Tour 26 Slim Mountain Bike Inner Tube 26" x 1 1/8-1.3 Presta - 42mm
