CST Bicycle Inner Tube 700C – Schrader Valve, Thorn Proof, Puncture Resistant – 35/43mm, 48mm Valve

Flat tires are the worst—but this CST inner tube is here to save the day.

It's a 700C tube with a Schrader valve (48mm long), and it's built to resist thorns and punctures.

That means fewer stops on the side of the road.

Tube size is 35/43mm, so it fits a nice range of tires.

Weighs about 436g, brand new, and still in the package.

Made from quality rubber, black, simple, no fuss.

Whether you're commuting, touring, or just cruising around town, this tube's got your back.

One tube per pack, ready to roll.

Reliable, affordable, and CST knows their stuff.