Bell Standard Presta Bicycle Inner Tube, 29" x 2.10-2.25"

First off. You need to do some research about your bike. This is a 29 inch tube, with a presta valve. If you buy this expecting it to be a schrader valve... Then that is your first problem. Second, the thickness is also clearly labeled. If you need thicker/thinner... Go elsewhere. This is labeled perfect and accurately. For me. This is the perfect tube to toss two of in my bag incase of a blow out or two. I see no need to constantly carry around my $40 spare tubes, when this works as a perfect "spare" during a bad bit of luck. It works just as well as the $40 set. But I don't trust it in high stress situations. I toss this on if I get a cut/tear or full blowout. Then take it off when I get home and put my good tubes on. My set has lasted me about 500 miles. But I can see they are much lower quality than the more expensive ones. If you get this for your ever day use, expect a blowout under stress.

Easy to install. Works great with my bike.