Tubes: All Sizes/Types

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

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

- Size: 18 x 1-3/8 - ISO Diameter: 400/18" - ISO Width (mm): 35mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 98g

- Low Lead Valve - ISO Diameter: 451/ 20 x 1-1/8", 20 x 1-1/8" - ISO Width (mm): 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm - Labeled Size: 20 x 1-1/8 - 1-3/8 - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 94g

- ISO Diameter: 438 , 451/ 20 x 1-1/8", 20 x 1-1/8" - ISO Width: 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm - Labeled Size: 20 x 1-1/8 - 1-3/8 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 98g

- ISO Diameter: 406 / 20" BMX - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta - Valve Shaft: Threaded - Valve Core: Removable

- Labeled Size: 24 x 1 - ISO Diameter: 540 / Wheelchair - ISO Width: 23mm, 24mm, 25mm - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta Short 32-40mm - Shaft Type: Threaded - Valve Core: Removable - Weight: 83g

- Low Lead Valve - ISO Diameter: 540 / wheelchair - ISO Width (mm): 35mm - Labeled Size: 24 x 1-3/8 - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 124g

- ISO Diameter: 507 / 24" BMX - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Standard Schrader - Shaft Type: Smooth - Valve Core: Removable

- Size: 26 x 1.5 – 1.75 - ISO Diameter: 559 / 26" mtn , 584 / 650b / 27.5" - ISO Width: 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight 152g (32mm), 158g (48mm)

- Size: 26 x 1.9 – 2.125 - ISO Diameter: 559 / 26" mtn - ISO Width: 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 170g (32mm), 171g (48mm)

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

- ISO Diameter: 584 / 650b / 27.5" - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded

- Size: 650B x 35 – 43 - ISO Diameter: 584 / 650b / 27.5" - ISO Width: 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 83g

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

- ISO Diameter: 622 / road / 29" - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Length: Schrader - Valve Shaft: Smooth - Weight: 110g (23-25mm), 128g (28-32mm), 144g (35-43mm), 160g (40-45mm)

- Size: 20 x 1-1/8 - ISO Diameter: 438 , 451/ 20 x 1-1/8", 20 x 1-1/8" - ISO Width: 25mm, 26mm, 27mm, 28mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 78g (32mm), 84g (60mm)

- Size: 700c x 28 – 32 - ISO Diameter: 622 / road / 29" - ISO Width: 28mm, 29mm, 30mm, 31mm, 32mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 102g (48mm), 104g (60mm)

- Size: 700c x 35 – 43 - ISO Diameter: 622 / road / 29" - ISO Width: 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 122g (32mm), 124g (48mm), 126g (60mm)

- Size: 16 x 1.75 – 2.125 - ISO Width: 47mm – 57mm - ISO Diameter: 305 / 16" - Shaft Type: Smooth - Flat Protection: Thorn Resistant - Valve: Standard Schrader - Valve Core: Removable - Tube Compound: Butyl

- Valve: Presta - Butyl rubber - Wall thickness: 0.9mm

- Butyl rubber - Removable valve core - Schrader valve - Wall thickness: 0.9mm

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

Standard tubes hold air considerably longer due to the purity of the rubber compound and the uniform wall thickness. - Presta valve tube - 40mm valve length

- 1.2mm thick - ISO Diameter: 559 / 26" mtn - ISO Width (mm): 59 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 2.35-2.75 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 384g

Continental tubes are made of seamless butyl rubber and are individually tested for top quality. 42mm valve: 95 grams 60mm valve: 100 grams