Tube - 27.5" x 2.10-2.35" Select Valve Type & Length, 32mm or 48mm PRESTA or Regular Schrader Valve. Replacement tube for 27.5" Mountain bike, or bicycle with same tire size. MTB MTN style bike

This tube won't hold air after inflating right out of the box, before I even put it on my bike. I feel a draft of air coming from the tire, away from the seam, immediately after inflating to 10psi. Buying this product turned out to be a huge waste of my time. I wish this company had better quality control. This product fails to accomplish its primary purpose which is to hold air. In my opinion, this doesn't have high enough quality to be labeled "Amazon's Choice." Amazon should consider removing this defective product from their market all together.

Heavy duty inner tube, big, bulky and thick. Had four flats within a month. Installed this and a inner liner on my rear tire.At first the bike felt heavy but got used to it after a while. Have not had any more issues since. I top of my tires with air about once a week now.Holds air well. I have put about 100 miles on it since with no flats.

I bought a new bike, and the first time I took it out around the block I noticed I had a flat. So, of course, I hopped on amazon and came across this tube. Once it arrived, I was able to get it swapped out for the flat tube fairly quickly (considering I had never changed a bike tube before). It has been about a month and I haven't had any problems with this tube, and would purchase again if I developed another flat tire.

Poor quality! I only got 3 ride before I had to replace both tubes!

Bought 2 of this tubes. Both tubes punctured where the value meets the rim. Extremely poor quality.

Nice tube with fast shipping, looks like a better product than what my bike came with so we shall see.

Simple product

Great product