Hey guys. I was sized by my lbs who mesured me to be a 54cm. I havnt had time to go in and have it fitted and tried to set it up as youtube videos demonstrate however to allow my knee to be at the 80-90 deg angle without locking out my saddle must but brought down to only 4-5 inches above the tube. does this mean the frame is simply too large? i dont feel streatched up top at all but the bike just looks funny now witht he saddle so low.