mj16 said:
nice brother you are
Size Min Height Max Height
15" 5'6"
17" 5'7" 5'10"
19" 5'11" 6'1"
21" 6'2"
Sorry, gotta disagree on this. First of all, any frame sizing guide without overlap is flawed to begin with. According to this guide, someone at 5' 10-1/2" is too tall for the 17" and too short for the 19". The only other interpretation would be that at 5' 10-7/8" the 17-inch frame is the clear choice because he doesn't meet the "minimum" height "required" for the 19-inch frame.
The Randall Scott sizing guide for the MKIII is more realistic, but I would personally add even more overlap. For example, I would say the 17-frame should max at 5' 10" and leave the 19-inch starting point at 5' 9". There is too much personal preference involved, as well as folks with disproportionate bodies to be too cut and dry.