the cb 400f is definitely too small, but makes a great pit bike. im 6' 220 with bad knees and fake hip, and the 750 is good , but u can switch bars to suit ur needs. they have a standard seat(not crotch rocketed, not cruiser/recliner), dont get me wrong, i love em all, i have 3 bikes, anxiety which to ride. warm and dry in fl .......