• Butyl rubber • Schrader valve • 20 x 4 1/4 • Fits the rear tires on high-rise bicycles like Schwinn's Sting-Ray

- Valve Type: Presta - Valve Core: Removable - Flat Fold Width: 54mm - Wall Thickness: 4.3mm - Threaded Valve

- Valve Type: Schrader - Valve Length: 35mm - Valve Stem: Smooth - Valve Core: Removable - Flat Fold Width: 51mm - Wall Thickness: 0.9mm

- 2-ply rubber shield fits between tire and tube to prevent flats - Pair

• Butyl rubber • Schrader valve • 24 x 2.75-3

• Butyl rubber • Economy tube • Presta valve • Non-removable core • Valve length: 32mm • 26 x 4.0-4.8

• Sold each, individually boxed for store display • 36mm Presta valve • Removable valve core

• Sold each, individually boxed for store display • Presta valve • Removable valve core • 36mm valve • 29 x 2.5-3.0

Your inner tubes are one of the most critical components on your bike. Bontrager's are premium quality, standard weight tubes that keep you rolling. Get one more than you think you'll need—you can always use a spare.

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

- 1.2mm wall thickness for added flat protection - Resists punctures and pinch flats - 100% inspected for guaranteed quality

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Keep punctures at bay with Bontrager's Thorn Resistant Tube. It's a whopping 4.1mm thick to protect you from sharp road debris and thorns.

Being prepared is never a bad thing. That's why you should keep an extra tube for your extra-wide Fatti-O tires on hand; that way, you are always ready to roll.

• Butyl rubber • Thorn-resistant • 48mm-long Schrader valve • 700 x 35-43

• Butyl rubber • Thorn-resistant • Schrader valve • 18 x 1.75-2.125

- 0.9mm wall thickness - Equipped with removable valve cores - 100% inspected for guaranteed quality

Your inner-tubes are one of the most critical components on your bike. Bontrager's are premium quality, standard weight tubes that keep you rolling. Get one more than you think you'll need—you can always use a spare.

Your inner-tubes are one of the most critical components on your bike. Bontrager's are premium quality, standard weight tubes that keep you rolling. Get one more than you think you'll need—you can always use a spare.

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