Specialized Thorn Resistant Presa Valve 700c Bike Tube

Hop on your two-wheeled chariot and cruise on out - don't forget to tote the Thorn-Resistant Presta Valve 29" Bike Tubes for your journey! This tube was designed to take down thorns & spines like a biker boss, so there'll be nary a puncture to stop your scenic ride.

Starting at the basis of the construction, Specialized designed the tube to be thicker at the outer side (the part against the tire) in order to stop pesky bits from puncturing all the way through the tube. Then, at the inner side (the part against the rim), it's actually thinner in order to reduce weight. This way, you don't have to sacrifice performance in the name of protection.

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