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)

- 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

Protect yourself from flats with Bontrager Thorn-Resistant tubes. Asymmetric design uses thicker rubber on the tread side and thinner rubber elsewhere, which saves weight while maximizing puncture protection. Product details - 4.1mm thickness (tread side) - Asymmetric extrusion puts extra rubber along tire sidewall and tread zones - 100% inspected for guaranteed quality 27-inch tire size equivalents - 700c x 28 – 32 also fits 27 x 1-1/8 – 1-1/4 - 700c x 35 – 44 also fits 27 x 1-3/8 – 1-3/4

The industry standard comes in all sizes Premium-quality Bontrager Standard butyl rubber tubes feature a 0.9mm wall thickness for the perfect balance of weight savings and durability. - 0.9mm wall thickness - Equipped with removable valve cores - 100% inspected for guaranteed quality - Best value 27-inch tire size equivalents - 700c x 28 – 32 also fits 27 x 1-1/8 – 1-1/4 - 700c x 35 – 44 also fits 27 x 1-3/8 – 1-3/4

- 0.9mm wall thickness - Removable valve core - 700c x 18 – 25 = 27 x 1 - 700c x 28 – 35 = 27 x 1-1/8, 1-1/4

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: Presta - Butyl rubber - Wall thickness: 0.9mm

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.

- Polyurethane tube - Twice as strong as a regular butyl tube - Super lightweight - Very compact

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 your bicycle easier to ride. - 42mm valve: 70 grams - 60mm valve: 80 grams - 80mm valve: 90 grams

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

- Standard 1mm tube thickness - Removable-core Presta valve

- Standard 1mm tube thickness - Presta valve

- 0.9mm wall thickness - 700c x 18 – 25 = 27 x 1 - 700c x 28 – 35 = 27 x 1-1/8, 1-1/4

- Standard 1mm tube thickness - Schrader valve

Made from top quality butyl, more airtight and sturdy.

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.

Kenda Thorn Resistant tubes are available in a variety of sizes and are the most cost-effective way to prevent flat tires. At 4.3 mm these tubes are ultra-thick. - Puncture resistance built into the tube - Butyl rubber - Schrader valve, 35mm

- 0.8mm walls (0.9mm walls for 16", 20", 24" sizes) - Puncture resistant - Tube Width: 1.50-2.50 - Valve Length: 48mm - Valve: Schrader - Tube Thickness in mm: 0.8mm - Valve Core: Removable

- ISO Diameter: 559 / 26" mtn - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 102g (1-1.25), 165g (1.5-1.75), 174g (1.9-2.125), 198g (2.1-2.3), 281g (2.4-2.75)

- Removable valve core - 0.9mm wall thickness

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. - 45 grams

- Polyurethane tube - Twice as strong as a regular butyl tube - Super lightweight - Very compact

- 4.0mm thickness - Available in Presta and Schrader valves

- Polyurethane tube - Twice as strong as a regular butyl tube - Super lightweight - Very compact - Wheel Diameter: 29'' - Tube Width: 2.20-2.60 - Valve Length: 40mm - Valve: Presta - Tube Weight: 100g - Shaft Type: Threaded - Thorn resistant: No

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

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