These Duro inner tubes come in one width (20-25c) and in 2 different valve lengths, 48mm, and 60mm. No matter the length of the valve, the low price remains the same. The 20-25c width is super accommodating. These inner tubes can be used to tire widths between 18c and 25c. That’s a huge range!

Duro 700c Road tubes come packaged in an air tight foil bag. This not only makes storage easy but this style of packaging helps to keep your tubes fresh. Keeping tubes fresh is an issue because you don’t want them to dry out and crack before you even have a chance to ride them.

One thing we have discovered is that there are only a handful of bicycle inner tube manufacturers. Many if not all inner tubes, come from a small handful of suppliers in Asia. This essentially means that no matter the tube brand, we’re all riding the same tubes. This is great for you because you’ll be getting a high quality tube at a super reduced price. Nearly nowhere else can you buy an inner tube for such a low price anymore!

Duro Inner Tubes are super inexpensive and super versatile. Varying valve length and a wide width range enable these 700c road inner tubes to be used in many applications. Whether it’s Road, Track or Fixed Gear, these tubes will work!

• Wide Width Range 20-25c
• 2 Different Valve Lengths 48mm, 60mm (for deep dish wheels)
• Threaded Valves help to keep valve in place
• Weight: 91grams (60mm) +/-15grams