I got my wife a used Bianchi Giro. It's been well cared for and in great shape. My wife (and I) are new to cycling. We are enjoying and have been going on three or four 15-20 mile rides a week. One of the tires has a small cut in it that looks unsafe. I'm going to replace both tires and want to know how the width of tires affect the ride. It came with 700X23C tires but I'm wondering if 700X25C would be more comfortable for the type of riding we do.
