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.

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

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

- Valve Type: Presta - Valve Core: Non-Removable - Wall Thickness: 0.9mm - Flat Fold Width: 44mm (1.75-2.10), 65mm (2.50-3.0), 78mm (3.0-3.50)

Size: - 29 x 1.75-2.10 / 700c x 35-50 - 29 x 3.0-3.50 - Valve Type: Presta - Valve Length: 32mm - 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: Presta, threaded - Valve core: removable - Tube size: 27.5 x 3.0

Odyssey's Air Supply tubes are specifically sized to fit modern BMX tires, and they are manufactured with a stronger emphasis on quality versus simply chasing the lowest possible price. On average, the Air Supply BMX tube retains air significantly longer than others currently available on the market. This is down to both the rubber that is used, and because of strict quality control during manufacturing. It is normal to assume that a “tube is a tube,” but a higher quality tube will always last longer than a cheap tube during comparable everyday use.

- Super-thick Slimed-tube resists punctures from thorns and pinching - Lasts 5 times longer than standard tubes

Single presta tube for a 27.5-inch/650b tire. - 27.5 x 1.75-2.5

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.

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. Special quality control that prevents unpleasant surprises.

• Butyl rubber • Thorn-resistant • Self-sealing • Presta valve with removable core • 700 x 20-25

• Butyl rubber • Thorn-resistant • Schrader valve • 24 x 1.9-2.35

• Butyl rubber • 48mm Schrader valve • 700 x 35-43

• Butyl rubber • Schrader valve • 700 x 28-35 (27 x 1 1/8-1/4)

• Butyl rubber • Schrader valve • 24 x 1.9-2.35

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 26 x 1.9-2.35

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

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

- Butyl rubber - Presta Valve - Valve Angle: 0d - Removable Valve Core - Flat Fold Width: 22mm - Wall Thickness: 0.9mm

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

• Low Lead Valve • ISO Diameter: 406 / 20" BMX • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth • Weight: 98g (1.25-1.5), 114g (1.5-1.75), 130g (1.75-2.125), 152g (2.1-2.3)

• 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

• 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: 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

• ISO Diameter: 622 / road / 29" • Tube Compound: Butyl • Valve: Long Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth

• ISO Diameter: 622 / road / 29" , 630 / 27" • ISO Width (mm): 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm • Labeled Size: 29 x 1.9-2.3 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 220g (32mm), 221g (48mm)

• ISO Diameter: 571 / 650c • ISO Width (mm): 18 mm , 19 mm , 20 mm , 21 mm , 22 mm , 23 mm • Labeled Size: 650c x 18-23 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 89-92g

• ISO Diameter: 540 / wheelchair • ISO Width (mm): 35 mm • Labeled Size: 24 x 1-3/8 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 122g

• ISO Diameter: 406 / 20" BMX • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 92g (1.25-1.5), 118g (1.5-1.75), 132g (1.75-2.125)