I know the K5 was a good bike but the advances with big piston forks, balance free rear cushion shocks, monoblock calipers etc (I actually had the 2012 BFRC shock on my RR9 and on my K5 I had 2010 Fireblade monoblock Tokico's) and the K5 was still nowhere near as good as my Blade. I actually preferred my K3 thou to my K5, not saying it was a better bike but I preferred it.