- 2-ply rubber shield fits between tire and tube to prevent flats - Pair

Challenge's S.C. Seamless Latex Tube is hand made for the highest quality. Latex tubes are usually lighter and roll with less resistance than standard butyl tubes. They also resist punctures. The S.C. fits tires 19 to 28mm wide, and has a 47.5mm-long valve with a removable core.

Challenge's S.C. Seamless Latex Cross Tube is hand made for the highest quality. Latex tubes are usually lighter and roll with less resistance than standard butyl tubes. They also resist punctures. The S.C. fits tires 28 to 35mm wide, and has a 47.5mm-long valve with a removable core.

Single presta tube for a 27.5-inch/650b tire. - 27.5 x 1.75-2.5

Unless you're running tubeless (and even if you are), it's a good idea to keep a spare tube or two around, so you can change a tire quickly and reliably, then get back to riding. Continental's Presta valve tube has you covered.

Case of 50 700c tubes. 105g per tube. Available with 42mm and 60mm valve lengths.

Continental bicycle tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental Cross Tubes are made of seamless butyl rubber and are individually tested for top quality. They're also heavier duty than standard tubes and perfect for the rough-and-tumble world that is cyclocross.

Continental's Downhill Tubes are made of seamless butyl rubber and are individually tested for top quality. These are Conti's heaviest-duty tubes, built extra-tough to withstand the constant abuse and impact of downhilling.

Continental's Freeride Tubes are made of seamless butyl rubber and are individually tested for top quality. These heavy-duty tubes are tough and built to withstand the abuse of freeriding.

Continental's Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are lighter than standard ones to make your tires feel more supple and accelerate even faster.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make your tires more supple and help your wheels accelerate even faster.

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make tires more supple and accelerate even faster.

Continental Cross Tubes are made of seamless butyl rubber and are individually tested for top quality. They're also heavier duty than standard tubes and perfect for the rough-and-tumble world that is cyclocross.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make your accelerate even faster and enhance the suppleness of your tires.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make your wheels accelerate even faster and enhance the suppleness of your tires.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make your bicycle easier to ride.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

- Standard .97mm wall thickness butyl tube - Most popular CST tube for general-purpose riding