Serfas replacement inner tubes are lightweight, durable, and affordable.

We all love to stop and smell the roses, but like they say, every rose has its thorn. And as we all know, there's no better way to ruin a beautiful ride than with a thorn in the tube. No need to worry, though, because we designed our Thorn-Resistant Schrader Valve Tubes to combat pesky pricks of all shapes and sizes. Starting at the basis of the construction, we designed the tube to be thicker at the outer side (the part against the tire) in order to stop pesky bits from puncturing all the way through the tube. Then, at the inner side (the part against the rim), it's actually thinner in order to reduce weight. This way, you don't have to sacrifice performance in the name of protection. - Thicker construction on the outer side (against the tire) enhances puncture protection. - Thinner construction on the inner side (against the rim) maximizes weight savings.

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

- Butyl rubber - Economy tube - Schrader valve - 20 x 1.95-2.125: 32mm valve stem - 20 x 2.0-2.4: 35mm valve stem

Our Standard Schrader Valve Tubes feature a molded method of construction that ensures a consistent thickness of butyl rubber. This means that they don't have any unnecessary weight and will roll smooth, ride after ride. - Individually cured for consistent tube thickness = the utmost in quality.

Shrink Wrap Package Presta Tube Size: 700x18-23 (27x1) Valve Type: PV Valve Length: 48mm Valve Angle: 0d Valve Stem: Threaded Valve Core: Non Removable

Size: 26x1.95-2.125 Valve Type: SV Valve Length: 32mm Valve Angle: 0d Valve Stem: Smooth Valve Core: Removable

- Butyl rubber - 32mm-long Presta valve (smooth/removable core) - 700 x 25-30 (27 x 1-1 1/8)

- Butyl rubber - Schrader valve - 14 x 1.75

- Butyl rubber - Schrader valve - 14 x 2.125

- 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 - 16 x 2.125

- Butyl rubber - Schrader valve - 18 x 1.75

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

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

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

- Butyl rubber - Schrader valve - 20 x 2-2.25

- Butyl rubber - Schrader valve - 22 x 1.75

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

- Butyl rubber - Schrader valve - 24 x 1.5-1.95

- 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 28-35 (27 x 1 1/8-1/4)

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

- 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)

We all love to stop and smell the roses, but like they say, every rose has its thorn. And as we all know, there's no better way to ruin a beautiful ride than with a thorn in the tube. No need to worry, though, because we designed our Thorn-Resistant Presta Valve Tubes to combat pesky pricks of all shapes and sizes. Starting at the basis of the construction, we designed the tube to be thicker at the outer side (the part against the tire) in order to stop pesky bits from puncturing all the way through the tube. Then, at the inner side (the part against the rim), it's actually thinner in order to reduce weight. This way, you don't have to sacrifice performance in the name of protection. - Thicker construction on the outer side (against the tire) enhances puncture protection. - Thinner construction on the inner side (against the rim) maximizes weight savings.

- Valve Type: Schrader - Valve Length: 32mm - Valve Stem: Smooth - Valve Core: Removable - Flat Fold Width: 51mm - Wall Thickness: 0.9mm