Instruct: Classify the given review into positive or negative sentiment.
Query: Ruined my brand new bike!

My cousin gave this to me three years ago, but before installing it my bike was stolen. Fast forward three years and I eagerly install this basket on my brand new Bianchi Cortina. With nothing other than my six pound purse inside, the basket sagged disappointingly. When I arrived at my destination (a 3-mile ride to the dentist) I noticed that the sagging basket had ground a groove into the frame of my brand new bike. I am disgusted with this product, especially given the high price and Topeak's stellar reputation.