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)

- Shim adds support to presta stem used in a schrader rim

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

• Butyl rubber • Economy tube • Schrader valve • 35mm valve stem • 26 x 3.5-4.0

Q-Tubes Value Series Presta tubes: Price point tubes with 1.0mm wall thickness, removeable valve cores and simplified size specifications Removable Presta valve core Individually packaged tubes in recycled cardboard Labeled Size: 29 x 2.125-2.35 Weight: 230 g Valve Core: Removable Shaft Type: Threaded ISO Width (mm): 57 mm , 58 mm , 59 mm , 60 mm , 61 mm , 62 mm Tube Compound: Butyl ISO Diameter: 622 / Road / 29" Valve: Presta Med 41-55mm Wall Thickess: 1 mm

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.

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.

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.

Q-Tubes Value Series Presta tubes: Price point tubes with 1.0mm wall thickness, removeable valve cores and simplified size specifications Removable Presta valve core Individually packaged tubes in recycled cardboard Labeled Size: 700 x 35-40cm Weight: 165 g Valve Core: Removable Shaft Type: Threaded ISO Width (mm): 35 mm , 36 mm , 37 mm , 38 mm , 39 mm , 40 mm Tube Compound: Butyl ISO Diameter: 622 / Road / 29" Valve: Presta Wall Thickess: 1 mm

• Butyl rubber • Thorn-resistant • Schrader valve • 16 x 2.125

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 16 x 1 (349 x 19)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 16 x 1 3/8 (349 x 25)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 20 x 1 (451 x 19)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 20 x 1 3/8 (451 x 32)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 20 x 1.35-1.5 (406 x 37-45)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 20 x 1.25-1.5 (406 x 37-45)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 700 x 40-45

• Butyl rubber • Presta valve (smooth/removable core) • 26 x 4.0

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 26 x 1.5-1.95

• Butyl rubber (2.25mm thick) • Schrader valve • Great for downhill bikes • 26 x 2.35-2.75

• Butyl rubber (2.25mm thick) • Schrader valve • Great for downhill bikes • 26 x 2.75-3

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 26 x 1 (650 x 18)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 26 x 1.9-2.35

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

• Butyl rubber • 60mm-long Presta valve (smooth/removable core) • 700 x 18-23 (27 x 1)

• Butyl rubber • 80mm-long Presta valve (smooth/removable core) • 700 x 18-23 (27 x 1)