I'm 6' 4" and have had to modify almost every bike I've owned to fit comfortably. Harley touring models are some of the easiest to modify for big dudes. Kits to move the floorboards out or forward are cheap and available. Lots of different shifters and brake pedals available in many lengths. Probably the best ready made saddle selection from the MoCo and aftermarket suppliers. Huge handlebar selection and the MoCo has all the cables, wiring and hoses in stock to fit any set of bars. I never could get my Vulcan right, hence it went bye bye. I've never had a problem getting a Harley to fit comfortably. Here's my current Glide Limited with extended shifters, extended shift pegs and the floorboards kicked out 3/4". Fits my size 15's perfectly.