Review on 🚴 Discover the Reliable Bell 16-Inch Universal Inner Tube: Ideal Width Fit Range of 1.75-2.25 Inches in Classic Black by Shawn Pollock

I had a flat tire on both my Bob Single and my Bob Duallie. Instead of spending too much money on Bob parts, I bought them from Revain. They fit perfectly. It definitely takes some skill to remove an old tire and fit a new one. Make sure you have a pair of flat head screwdrivers handy. And I've learned that if the pump isn't fully seated on the valve, it won't pump air. I always thought I installed it wrong. It is difficult to get the valve stem out of the tire when there is so little air in it to push it out. so you can grab it. The first one took me probably 15 minutes and the next 5 minutes.