The name Airstop says it all. Michelin's Airstop tubes use a proprietary butyl rubber so your tires keep their pressure longer. And, the reinforced valve stem seam is ultra sturdy, too.

• ISO Diameter: 622 / road / 29" • ISO Width (mm): 23 mm , 24 mm , 25 mm • Labeled Size: 700c x 23-25 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 125g (32mm), 126g (48 & 60mm), 128g (80mm)

Continental's Freeride Tubes are made of seamless butyl rubber and are individually tested for top quality. These heavy-duty tubes are tough and built to withstand the abuse of freeriding.

• Butyl rubber • 32mm-long Presta valve (smooth/removable core) • 16 x 1 3/8 (349 x 25)

• Butyl rubber (2.25mm thick) • Schrader valve • Great for downhill bikes • 26 x 2.75-3

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

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

Continental tubes are made of seamless butyl rubber and are individually tested for top quality.

Michelin's Airstop name says it all. Their Airstop tubes use a proprietary butyl rubber that holds pressure longer so you won't have to top off your tires so much. These fine tubes are reinforced at the valve, too.

• Butyl rubber • Schrader valve • 28 x 1 1/2

- Valve Type: Schrader - Valve Stem: Smooth - Valve Core: Removable - Flat Fold Width: 56mm - Wall Thickness: 0.9mm

- Butyl rubber - Economy tube - Schrader valve - 26 x 2.0-2.4

- Butyl rubber - Thorn-resistant - Economy tube - Schrader valve (35mm)

• Low Lead Valve • ISO Diameter: 406 / 20" BMX • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth • Weight: 98g (1.25-1.5), 114g (1.5-1.75), 130g (1.75-2.125), 152g (2.1-2.3)

• Low Lead Valve • 4mm wall thickness in the tread area and 2mm in the rim area • ISO Diameter: 406 / 20" BMX • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth • Weight: 450g (1.5-1.75), 475g (1.75-2.125)

• Low Lead Valve • 4mm wall thickness in the tread area and 2mm in the rim area • ISO Diameter: 507 / 24" BMX • ISO Width (mm): 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm • Labeled Size: 24 x 1.9-2.125 • Tube Compound: Butyl • Valve: Standard Schrader • Valve Core: Removable • Valve Length: Schrader • Valve Shaft: Smooth • Weight: 600g

• 2.25mm wall thickness • ISO Diameter: 507 / 24" BMX • ISO Width (mm): 60 mm , 61 mm , 62 mm , 63 mm , 64 mm , 65 mm , 66 mm , 67 mm , 68 mm , 69 mm • Labeled Size: 24 x 2.4-2.75 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 576g

• 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

• ISO Diameter: 520 / 24" mini bmx • ISO Width (mm): 25 mm , 26 mm , 27 mm , 28 mm • Labeled Size: 24 x 1-1/8 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 80g (32mm), 82g (60mm)

• ISO Diameter: 559 / 26" mtn • ISO Width (mm): 54 mm • Labeled Size: 26 x 2.1-2.3 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 175g

• Can be used with fat bike tires 4.0" and under • ISO Diameter: 559 / 26" mtn • ISO Width (mm): 60 mm , 61 mm , 62 mm , 63 mm , 64 mm , 65 mm , 66 mm , 67 mm , 68 mm • Labeled Size: 26 x 2.4-2.7 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 256g

• ISO Diameter: 571 / 650c • ISO Width (mm): 18 mm , 19 mm , 20 mm , 21 mm , 22 mm , 23 mm • Labeled Size: 650c x 18-23 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 80g (32mm), 86g (48m & 60mm), 88g (80mm)

• ISO Diameter: 622 / road / 29" • ISO Width (mm): 18 mm , 19 mm , 20 mm , 21 mm , 22 mm , 23 mm • Labeled Size: 700c x 18-23 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 80g (32mm), 84g (48mm & 60mm), 88g (80mm)

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

• 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: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 176g (32mm), 178g (48mm)

• ISO Diameter: 340 , 349 / 16" recumbent • ISO Width (mm): 35 mm • Labeled Size: 16 x 1-3/8 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 84g

• 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: 520 / 24" mini bmx • ISO Width (mm): 29 mm • Labeled Size: 24 x 1-1/8 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Length: Short 32-40mm • Valve Shaft: Threaded • Weight: 92g

• 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

• ISO Diameter: 622 / road / 29" , 630 / 27" • ISO Width (mm): 18 mm , 19 mm , 20 mm , 21 mm , 22 mm , 23 mm • Labeled Size: 700c x 18-23 • Tube Compound: Butyl • Valve: Presta • Valve Core: Removable • Valve Shaft: Threaded • Weight: 100g (32mm), 101g (48mm & 60mm), 103g (80mm)