The bike is "ok" comfort wise for me, but if my tank bag isn't all the way forward i can have trouble turning. Also, your legs are tucked up pretty tight, so sometimes when riding long distances my hips can cramp. Since the riding stance is pretty aggressive and im short, my wrists sometimes have problems (granted i have carpel tunnel) but some people have issues since the downward angel of the clipons are more aggressive then other bikes.
I have to agree but for some reason the rider position of the RC51 has gotten more comfortable for me over time. When I first started riding the bike it felt cramped but now I can go for hours with no issues. This bike is a keeper for sure.