Originally Posted by
jbonamici
One or both of you is going to wind up unhappy with this arrangement IMO. BBM is right; a 63 is way big for your dad unless he has no torso, and even then the top tube will be too long.
+1 on that. I'm 5'6" with long legs for my size, ride 56's and 58's, which everyone says are too big. They probably are. I sell a bike from time to time, and no one yet my height has been comfortable on a 58. You put that poor guy on a 61-63 and he will not be "confident."
