Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Hold Air

I read the reviews of this product and wasn't sure. I ordered anyway because it seems difficult to find tubes that receive consistently good reviews. I installed this tube without any problems, and I suppose it's working. However, it's been a couple of months, and I have to give this tube an extraordinary about of inflation prior to each ride. The tubes that came with my bicycle did not require nearly this much inflation, and I had those for many years. I suggest looking elsewhere.