The name Airstop says it all. Michelin's Airstop tubes use a proprietary butyl rubber so your tires keep their pressure longer. And, the reinforced valve stem seam is ultra sturdy, too. - 98g - 52mm valve length

- High-quality, ultra-low weight tube that retains air just as well as conventional butyl tubes - Possesses the same resistance to punctures - 40mm valve length

Tough conditions demand tough tubes. Michelin's Aircomp DH tubes are perfect for running low pressures and taking huge hits at high speed.

- No more flats for 2 years! - Extra strong with Slime sealant inside - Instantly seals tread area punctures up to 1/8" (3mm) in size - Seals multiple punctures repeatedly - Non-toxic and non-flammable - Cleans up with water

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. - 48mm valve: 160 grams - 60mm valve: 165 grams

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Great for downhill bikes

- Butyl rubber - Thorn-resistant - Economy tube - Schrader valve - Removable valve core - Wall thickness: 3.7mm/1.7mm

Schwalbe tubes retain air pressure considerably longer than standard tubes. The quality and purity of the rubber mixture directly affects the quality of the tube.

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 4.3mm - Thorn-resistant

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm - Wheelchair-compatible

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

- Valve Type: Presta - Valve Stem: Smooth - Valve Core: Non-Removable - Flat Fold Width: 44mm (1.75-2.10), 78mm (3.0-3.50) - Wall Thickness: 0.9mm

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 4.3mm - Thorn-resistant

- Removable valve core - 0.9mm wall thickness

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

The name Airstop says it all. Michelin's Airstop tubes use a proprietary butyl rubber so your tires stay up to pressure longer. And, the reinforced valve stem seam is ultra sturdy, too. Weight: 196 grams (40mm); 198 grams (60mm)

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

Kenda Presta valve tubes are dependable replacements. Use them to build up your bike, and throw a spare in your bag so you can keep on riding.

- Valve Type: Schrader - Valve Length: 32mm - Valve Core: Removable - Butyl rubber - Wall Thickness: 0.9mm

These are no ordinary bicycle tubes! These extra strong inner tubes stop flats for 2 years because there is Slime inside. - No more flats for 2 years! - Extra strong with Slime sealant inside - Instantly seals tread area punctures up to 1/8" (3mm) in size - Seals multiple punctures repeatedly - Non-toxic and non-flammable - Cleans up with water

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

- Valve type: Presta - Valve stem: Threaded - Valve core: Removable - Butyl rubber

When building your featherweight dream bike, don't forget the tubes! Michelin's Aircomp Ultralight tubes are nearly weightless for minimum rolling resistance and maximum speed. - 77g

When building your featherweight dream bike, don't forget the tubes! Michelin's Aircomp Ultralight tubes are nearly weightless for minimum rolling resistance and maximum speed. - Weight: 75 grams

The name Airstop says it all. Michelin's Airstop tubes use a proprietary butyl rubber so your tires stay up to pressure longer. And, the reinforced valve stem seam is ultra sturdy, too. - Weight: 194 grams

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 4.3mm

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

Michelin's Airstop name says it all. Their Airstop tubes use a proprietary butyl rubber that holds pressure longer so you won't have to top off your tires so much. These fine tubes are reinforced at the valve, too. - 166g - 34mm Schrader valve

- Superlight tube - Removable valve core - 0.65mm wall thickness

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 4.3mm - Thorn-resistant