I just picked up my first project bike and I am a newb when it comes to all of this. I picked up a 53 or 54 cm miyata seventen. I got a good deal on a front 700c shimano WH r500. I have been researching and saw that these tires don't fit every bike. The front tire seems to fit alright but I am worried about the back tire. Can anyone shed some light? Also while I'm at it anyone have any idea how much this bike is worth? Appreciate it.