Two (2) Continental Supersonic 700 x 18-25

42mm or 60mm Presta Valve Inner Tube

Super Fast Same Day Shipping

Even on Saturday

* Two inner tubes per order *

• Less rotating weight = fast
• They don't lose air pressure like Latex tubes
• Weight: 42mm = 50g / 60mm = 53g on our scales

Super lightweight butyl tube, even lighter than latex but not porous, so no need to reinflate every day. Can also be fixed with a normal patch kit.