Thanks to the lightweight aluminum valve and butyl rubber construction, Zipp's Tangente Butyl Tube weighs only 89 grams. So it reduces that ever-critical rotational mass making your wheels lighter and your bicycle easier to pedal too. This fine tube is also made of .85mm-thick rubber for excellent reliability. The valve is 37mm long and features a removable core.

The Zipp Tangente butyl tubes are designed to meet the needs of a new era of road riding that includes adventures aboard wider tires. The tube’s 0.60mm thickness is optimized for durability. - 37mm valve stem length - Lightweight aluminum valve body with removable Presta valve core - For use with Zipp Tangente Aluminum Knurled Valve Extender - 0.60mm thick to optimize durability - Weight: 72 grams in 700x20-28 and 96 grams in 700x28-32

- Shim adds support to presta stem used in a schrader rim

WeThePeople innertubes are made of high-quality rubber and work very well to keep air in your tires. Designed for today's wider tires, they keep you rolling smoothly in all conditions. These are for 22-inch tires.

Durable enough to keep you rolling, yet light enough to not feel overly cumbersome in your jersey pocket. - Presta valve

Never leave home without a spare tube. Vittoria's Ultralite inner tubes shave grams and, if you flat in no man's land, will save your ride. - Butyl tube - 51mm valve stem with removable core

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 • 60mm-long Presta valve (smooth/removable core) • 700 x 25-30 (27 x 1-1 1/8)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 26 x 1 (650 x 18-23)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 26 x 1 (650 x 18-23)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 26 x 1.9-2.35

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 27.5 x 2.1-2.35 (650B)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 29 x 2.1 (700 x 50-52)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 700 x 18-23 (27 x 1)

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

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 700 x 28-35 (27 x 1 1/8-1/4)

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 700 x 35-40 (27 x 1 3/8)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 26 x 1 (650 x 18)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 26 x 1.9-2.35

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 27.5 x 2.1-2.35 (650B)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 29 x 2.1 (700 x 50-52)

- Butyl rubber - 48mm-long Presta valve (removable core) - 700 x 23-25 (27 x 1-1 1/8)

• Butyl rubber • 48mm-long Presta valve (smooth/removable core) • 700 x 28-35 (27 x 1 1/8-1/4)

• Butyl rubber • 48mm-long Presta valve (removable core) • 700 x 35-40 (27 x 1 3/8)

• Butyl rubber • 60mm-long Presta valve (smooth/removable core) • 26 x 1 (650 x 18-23)

• Butyl rubber • 60mm-long Presta valve (smooth/removable core) • 700 x 18-23 (27 x 1)

• Butyl rubber • 60mm-long Presta valve (smooth/removable core) • 700 x 25-30 (27 x 1-1 1/8)

• Butyl rubber • 80mm-long Presta valve (smooth/removable core) • 700 x 18-23 (27 x 1)

• Butyl rubber • 80mm-long Presta valve (smooth/removable core) • 700 x 23-25 (27 x 1-1 1/8)