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.

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

- Size: 26 x 1.50-1.95 - Valve Type: Presta - Valve Length: 32mm - Valve Stem: Threaded - Valve Core: Removable - Flat Fold Width: 42mm - Wall Thickness: 4.3mm

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

• Butyl rubber • Economy tube • Schrader valve • 35mm valve stem • 26 x 1 3/8

• Butyl rubber • 48mm-long Schrader valve • 29 x 2.1 (700 x 50-52)

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

• Butyl rubber • Schrader valve • 29 x 2.1 (700 x 50-52)

- Valve Type: Schrader - Valve Stem: Smooth - Valve Core: Removable - Flat Fold Width: 56mm - Wall Thickness: 0.9mm

• Butyl rubber • Presta valve (smooth/removable core) • 26 x 3.5

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.

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.

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.

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.

• Butyl rubber • Thorn-resistant • 48mm-long Schrader valve • 29 x 2.1 (700 x 50-52)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 29 x 2.1 (700 x 50-52)

• Butyl rubber • Schrader valve • 14 x 2.125

• Butyl rubber • Thorn-resistant • Schrader valve • 27 x 1 1/4 (700 x 30-35)

• Butyl rubber • Economy tube • Schrader valve • 16 x 1.5-1.95: 35mm valve stem • 16 x 2.125: 32mm valve stem

• Butyl rubber • Schrader valve • 24 x 2.75-3

• Butyl rubber • Economy tube • Presta valve • Non-removable core • 27.5 x 2.0-2.35

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.

• 2.25mm wall thickness • ISO Diameter: 559 / 26" mtn • ISO Width (mm): 60 mm , 61 mm , 62 mm , 63 mm , 64 mm , 65 mm , 66 mm , 67 mm , 68 mm , 69 mm • Labeled Size: 26 x 2.4-2.75 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 690g

• Butyl rubber • Schrader valve • 20 x 1.35-1.5 (406 x 37)

• ISO Diameter: 559 / 26" mtn • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • 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)

• Low Lead Valve • ISO Diameter: 203 / 12.5 • ISO Width (mm): 57 mm • Labeled Size: 12 x 2-1/4 • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth

• Low Lead Valve • ISO Diameter: 305 / 16" BMX • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth • Weight: 76g (1.25-1.5), 92g (1.5-1.75), 102g (1.75-2.125)

• Low Lead Valve • ISO Diameter: 340 , 349 / 16" recumbent • ISO Width (mm): 35 mm • Labeled Size: 16 x 1-3/8 • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth • Weight (g): 86 g