Differences between Trek 4300 Disc & 4500 Disc
Hey everyone, just a quick question...
I have been out of the sport for some time and just jumped back in. I picked up a 'Trek 4300 Disc' at my LBS about 1-2 weeks ago and it is a great bike, but I was wondering what the differences between the 4300 and the 4500 are? I would not mind upgrading at all, so if anything has any input on that I would appreciate it...
Thanks!