Does anyone have any suggestions on bicycle sizing? I currently have a 58cm frame that seems to fit me rather well with one exception. My arms seem to get very tired early on in a ride. I feel as if I have to hold myself up more than I should. Am not sure of the exact length of my bar stem (came on the bike, has to be at least 100mm or better though), however, I am thinking it may be too long.
Am not an expert on bicycle sizing so I do not know if this is the issue.
Any help would be appreciated.