Ditch those thorns and hit the trail! Specialized's Thorn-Resistant Schrader Valve 27.5" Bike Tube guarantees you won't have to hit the brakes when you ride through debris or "goat heads." No mountain biker should have to worry about their trusty ride getting punctured-- these bad boys will protect you!  

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.

FEATURES

• Thicker construction on the outer side (against the tire) enhances puncture protection.
• Thinner construction on the inner side (against the rim) maximizes weight savings.