275mm suspension was on the 2008-2011 R’s, 62hp. Other years were 250mm. Better steering angle introduced in 2011. Full 690 motor from 2012, 66hp. Twin spark head, 4CS forks and ABS from 2014, 67hp. New engine with slipper rockers from 2019, 74hp.
Rocker issues on some bikes, not others. Mine is on 09 stamped rockers, no issues. If I wasn’t buying a new one, I’d have a 2013. Last of the non ABS and can still map with Tuneecu.
Edited suspension heights. Wishful thinking on my part that the 08-11 R’s had 300mm.....