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

Because it's hard to know when you're going to get a flat, it's always good to have extra tubes on hand. Specialized's Thorn Resistant Tube is thicker on the road side for puncture protection and thinner on the rim side for weight savings.

- 0.9mm Wall thickness - 700 x 18-25C = 27 x 1 - 700 x 28-35C = 27 x 1-1/8, 1-1/4 - Compliant with California Proposition 65

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.

- 0.9mm Wall thickness - Removable valve core - 700 x 18-25C = 27 x 1 - 700 x 28-35C = 27 x 1-1/8, 1-1/4 - Compliant with California Proposition 65

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 18-25cm Weight: 125 g Valve Core: Removable Shaft Type: Threaded ISO Width (mm): 18 mm , 19 mm , 20 mm , 21 mm , 22 mm , 23 mm , 24 mm , 25 mm Tube Compound: Butyl ISO Diameter: 622 / Road / 29" Valve: Presta Wall Thickess: 1 mm

• Butyl rubber • Schrader valve • 12 1/2 x 2 1/4

• Butyl rubber • Schrader valve • 14 x 1.75

• Butyl rubber • Schrader valve • 16 x 1 3/8 (349 x 25)

• Butyl rubber • Schrader valve • 16 x 1.5-1.95

• Butyl rubber • Schrader valve • 20 x 1 1/8

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

• Butyl rubber • Economy tube • Schrader valve • 12-1/2 x 2-1/4

• Butyl rubber • Economy tube • Schrader valve • 20 x 1.75-1.95

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. - Decreased air loss design - Butyl rubber

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: 26 x 1.75-2.125 Weight: 185 g Valve Core: Removable Shaft Type: Threaded ISO Width (mm): 47 mm , 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm , 55 mm , 56 mm , 57 mm Tube Compound: Butyl ISO Diameter: 559 / 26" MTN Valve: Presta Med 41-55mm Wall Thickess: 1 mm

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 700 x 18-23 (27 x 1)

• Butyl rubber • Schrader valve • 14 x 2.125

• Butyl rubber • Schrader valve • 16 x 1.35 (305 x 37)

• Butyl rubber • Schrader valve • 16 x 2.125

• Butyl rubber • Schrader valve • 18 x 1.75

• Butyl rubber • Schrader valve • 20 x 1 3/8

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

- Butyl rubber - Schrader valve - 20 x 1.5-1.95

• Butyl rubber • Schrader valve • 24 x 1 3/8

• Butyl rubber • Schrader valve • 26 x 1 3/8

• Butyl rubber • Schrader valve • 26 x 1-1.25

• Butyl rubber • Schrader valve • 26 x 1.5-1.75

• Butyl rubber • Schrader valve • 27 x 1-1/4

• Butyl rubber • Schrader valve • 700 x 20-25 (27 x 1)