i have a 2009-2010 kz and dispute the rumor that a aftermarket DNM shock will not fit unless you either fabricate mounts or buy the kzr swingarm,
this is NOT the case with the new 350mm DNM piggy back shock that stomp have in stock,
i was surprised to find mine went on to my stock KZ swingarm easily with no modding or fabricating of mounts needed!!
this is a brilliant upgrade makes a hell of alot of difference to track riding , jumps etc well worth it.
i think only stomp stock this size at the mo,
but if anyone lives local to me and would like to try mine out before buying your welcome to have a go at cowm to see what difference it makes compared to stock shock
also got kzr fully adjustable forks on aswell if you wanted to see if there worth the upgrade to,
my suspension is so smooth now am well chuffed with result