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

Surly Inner Tube to fit a wide range of plus-size and fat bike tires. - Labeled Size: 26 x 3.0 - 4.8 - Weight: 310 g - Valve Core: Removable - Shaft Type: Threaded - ISO Width (mm): 76mm–100mm - Tube Compound: Butyl - ISO Diameter: 559 / 26-inch MTN - Valve: Presta Short 32-40mm

- Butyl rubber - 32mm-long Presta valve (Threaded/removable core) - 26 x 1.5-1.95

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

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.

Q-Tubes Fat Tubes have what you need for big tires. - Q-Tubes Fat Bike tubes feature environmentally friendly soy ink printing on recycled cardboard - Labeled Size: 26 x 4.0-4.8 - Weight: 580 g - ISO Width (mm): 100 mm , 101 mm , 102 mm , 103 mm , 104 mm , 105 mm , 106 mm , 107 mm , 108 mm , 109 mm , 110 mm , 111 mm , 112 mm , 113 mm , 114 mm , 115 mm , 116 mm , 117 mm , 118 mm , 119 mm , 120 mm - ISO Diameter: 559 / 26" MTN - Valve: Standard Schrader - Wall Thickness: 1 mm - Valve length: 32mm

- ISO Diameter: 559 / 26" mtn - ISO Width (mm): 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm - Labeled Size: 26 x 1.9-2.125 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 146g (32mm), 148g (48mm), 150g (60mm)

- 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 622 / road / 29" , 630 / 27" - ISO Width (mm): 54 mm , 55 mm , 56 mm , 57 mm , 58 mm - Labeled Size: 29 x 2.1-2.3 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 681g

- 4mm wall thickness in the tread area and 2mm in the rim area - 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: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 673g

- ISO Diameter: 305 / 16" BMX - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 76g (1.25-1.5), 88g (1.5-1.75)

- Low Lead Valve - ISO Diameter: 507 / 24" BMX - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight: 150g (1.5-1.75), 156g (1.9-2.125), 180g (2.1-2.3)

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

- ISO Diameter: 559 / 26" mtn - ISO Width (mm): 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm - Labeled Size: 26 x 1.9-2.125 - 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)

The Q-Tubes Standard Line Presta Valve tubes feature QBP's widest variety of tube sizes and valve lengths with a proven record of high quality control and consistent availability - 0.9mm wall thickness - Q-Tubes Standard Line packaging features environmentally friendly soy ink printing on recycled cardboard - Labeled Size: 27.5 x 2.8-3.2 - Weight: 325 g - Valve Core: Removable - Shaft Type: Threaded - ISO Width (mm): 70 mm , 71 mm , 72 mm , 73 mm , 74 mm , 75 mm , 76 mm , 77 mm , 78 mm , 79 mm , 80 mm , 81 mm , 82 mm , 83 mm - Tube Compound: Butyl - ISO Diameter: 584 / 650b / 27.5" - Valve: Presta Short 32-40mm

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

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling. - Valve length: 48mm

Giant's thorn tubes feature thicker rubber that prevents some punctures and flats.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling. This tube is for use on rims with an ISO diameter of 451 millimeters.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling. This tube features a 48mm-long valve stem ideal for deep section rims.

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

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

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

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

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

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

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

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

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling. These tubes fit older Schwinn bicycles with 26 x 1-3/8-inch wheels. - For use on rims with ISO diameter: 597mm

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling. - Removable valve core