I have both motorcycles which is what you really need. For me, unless I'm in the twisties or on a track, the 10R is grossly uncomfortable, while the 14R is very comfortable for extended rides or commuting. However, the 14R is far too heavy to make a good track bike - meaning road race track. Even after taking 50lbs off the 14R, it's still a tank compared to the 10R. If I could only have one of them, I would choose the 10R. I would rather bear the discomfort on the street and have great fun on the track, than be comfortable on the street yet totally out of place on the track.