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

- Size: 700c x 23 – 25 - ISO Diameter: 622 / road / 29" - ISO Width: 23mm, 24mm, 25mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 125g (32mm), 126g (48 & 60mm), 128g (80mm)

- ISO Diameter: 406 / 20" BMX - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta - Valve Shaft: Threaded - Valve Core: Removable

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. - 42mm valve: 70 grams - 60mm valve: 80 grams - 80mm valve: 90 grams

- Valve: Presta - Butyl rubber - Wall thickness: 0.9mm

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

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

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

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. - 98g - 40mm valve length

Thicker than Panaracer's regular tubes, the Super Tube delivers excellent reliability. High-strength butyl provides enhanced puncture resistance, making it the only choice for downhill riding. - Threaded 36mm Presta valve

- Labeled Size: 26 x 4.0 – 4.8 - ISO Width: 100mm – 120mm - ISO Diameter: 559 / 26" MTN - Valve: Standard Schrader - Wall Thickness: 1mm - Valve length: 32mm - Weight: 580g

Continental tubes are made of seamless butyl rubber and are individually tested for top quality. 42mm valve: 95 grams 60mm valve: 100 grams

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

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

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

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

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

- Butyl rubber - Thorn-resistant - Economy tube - Removable valve core

- 0.6 mm butyl walls

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. - 72 grams

- ISO Diameter: 406 / 20" BMX - Wall Thickness: 0.9mm - Tube Compound: Butyl - Valve: Standard Schrader - Shaft Type: Smooth - Valve Core: Removable

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

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.

The Kenda 35mm (Schrader valve) is made from butyl rubber. Kenda bicycle tubes are engineered to keep you on the right path.

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

Single Presta tube for a 27.5-inch/650B tire. - 27.5 x 2.60 – 2.80 - 42mm Presta valve

Single Schrader tube for a 27.5-inch/650B tire. - 27.5 x 2.60 – 2.80 - 42mm Schrader valve

- Size: 16 x 1.75 – 2.125 - ISO Width: 47mm – 57mm - ISO Diameter: 305 / 16" - Shaft Type: Smooth - Flat Protection: Thorn Resistant - Valve: Standard Schrader - Valve Core: Removable - Tube Compound: Butyl