Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You need the right kind of bike

My wife bought this seat on recommendations from a friend's husband. The first bike I tried would not take it. It is somewhat crucial that your seat adjustment bolt is level with or higher than the top of your back wheel. Her's wasn't, so we couldn't use it. Then we bought another bike at a yard sale, and I put it on there. On this bike the child seat contacts the rear brakes, so they are no longer functional, and the grabby bar on the child seat is hanging over the bike seat a bit. It would be nice to back the seat away a little. My recommendation would be to go to a bike shop and ask their opinion OR feel comfortable fabricating parts for your seat.Also, the picture on the box shows better hardware than they gave me to assemble with. If I had that hardware it would work nicely.