My co-worker (and good friend) at my bike shop has me sized up for a road bike. being a mountain biker i am new to road bike sizing. I have odd proportions, so here it goes: I am 5'9" I wear a size 13 shoe. I have an 86 cm inseam I have many more measurements that i can provide upon request. He said I would fit a 58cm size road frame. what do you think?