- Butyl rubber - Thorn-resistant - Schrader valve - 29 x 1.9-2.3

- 4mm wall thickness in the tread area and 2mm in the rim area - ISO Diameter: 559 / 26" mtn , 584 / 650b / 27.5" - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Length: Schrader - Valve Shaft: Smooth - Weight: 452g (1.5-1.75), 642g (1.9-2.125)

- ISO Diameter: 584 / 650b / 27.5" - ISO Width (mm): 52 mm , 53 mm , 54 mm , 55 mm , 56 mm , 57 mm , 58 mm - Labeled Size: 27.5 x 52/58 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded

MICHELIN's Protek Max tubes use a proprietary butyl rubber with a unique shape and design so your tires hold their pressure longer. For excellent durability, the tube is reinforced at the valve too. - Weight: 250 grams

Our Standard Presta 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.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make your bicycle easier to ride. - 42mm valve: 70 grams - 60mm valve: 80 grams - 80mm valve: 90 grams

When building your featherweight dream bike, don't forget the tubes! Michelin's Aircomp Ultralight tubes are nearly weightless for minimum rolling resistance and maximum speed. - Weight: 75 grams

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 Turbo Ultralight Road Tube w/Talc is lightweight to save rotational weight. The Talc lets the tube move easier inside the tire for a better ride with fewer flats.

- ISO Diameter: 622 / road / 29" - 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: 226g

- 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)

- ISO Diameter: 438 , 451/ 20 x 1-1/8", 20 x 1-1/8" - ISO Width (mm): 28 mm , 29 mm , 30 mm , 31 mm , 32 mm , 33 mm , 34 mm - 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: 540 / wheelchair - ISO Width (mm): 35 mm - Labeled Size: 24 x 1-3/8 - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Length: Short 32-40mm - Valve Shaft: Threaded - Weight: 122g

- Low Lead Valve - ISO Diameter: 355 - ISO Width (mm): 44 mm , 45 mm , 46 mm , 47 mm , 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm - Labeled Size: 18 x 1.75-2.125 - Tube Compound: Butyl - Valve: Standard Schrader - Valve Core: Removable - Valve Shaft: Smooth - Weight (g): 118 g

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.

Your little ones have a youthful, intrepid spirit that sees them riding wherever the wind takes them. Most of the time, however, it takes them straight through thorns and debris, leaving you with the unenviable task of changing out flat after flat. But with our Standard Schrader Valve Youth Tubes, you'll have the peace of mind that they're riding on tough tubes that are built strong to last. And to make sure of it, they feature a molded method of construction that ensures a consistent thickness of butyl rubber— meaning that they'll roll smooth and stay tough, ride after ride. - Consistent thickness for the utmost in quality. - 32mm Schrader valve

Unless you're running tubeless (and even if you are), it's a good idea to keep a spare tube or two around, so you can change a tire quickly and reliably, then get back to riding. Continental's Presta valve tube has you covered. - 42mm Presta valve

Q-Tubes Value Series Schrader tubes: Price point tubes with 1.0mm wall thickness and simplified size specifications - Removable Schrader valve core - Individually packaged tubes in recycled cardboard - Labeled Size: 26 x 1-3/8 - Weight: 155 g - ISO Width (mm): 35 mm - Tube Compound: Butyl - ISO Diameter: 590 / 26 x 1-3/8" - Valve: Standard Schrader 32mm - Wall Thickness: 1 mm