Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Blue tires? Cool!

These tires are very grippy on asphalt and are pretty good on dirt and grass as well. The rolling resistance is low, which is nice for road riding. They were a little cheaper in blue than they were in black, so I got the blue. I get a lot of comments on how cool my bike looks with the blue rubber. The blue is pretty bright so if you don't want to stand out, you might want to go with the plain black tires.