Tubes: All Sizes/Types

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

- Low Lead Valve - ISO Diameter: 457 - ISO Width (mm): 44mm - Labeled Size: 22 x 1.75 - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 145g

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

- ISO Diameter: 622 / Road / 29" - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta - Shaft Type: Threaded - Valve Core: Removable

- Size: 700c x 40 – 45 - ISO Diameter: 622 / road / 29" - ISO Width: 40mm, 41mm, 42mm, 43mm, 45mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 188g (32mm), 189g (48mm)

- 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: 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

Continental's Downhill Tubes are made of seamless butyl rubber and are individually tested for top quality. These are Conti's heaviest-duty tubes, built extra-tough to withstand the constant abuse and impact of downhilling. - 435 grams

Giant's thorn tubes use thicker rubber to prevent some flats and punctures.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling. - Valve length: 35mm

- Size: 26 x 2.4 – 2.75 - ISO Diameter: 559 / 26" mtn - ISO Width: 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 283g

- 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 622 / road / 29" - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 368g (28-32), 438g (35-43)

This is Surly’s 29 x 3-inch Presta valve tube. It fits their Knard tires and is made of butyl rubber.