What's the p/n of the failed part MOB? Answered above I now see.
the dogbones used there are NOT the factory installed ones... those are aftermarket/home made/whatever....
Notice this crack, too. Speculation, but I don't think that would happen in that location from just the frame cracking from fatigue. It looks more like some type of severe bottoming-out hit? That could be consistent with being overly-lowered? Or maybe it is just secondary as the weight shifted and caused other damage.
Notice this crack, too. Speculation ...
That's a casting mark on the engine case.
Sorry again, but that is not a Crack.
Yep. Was the bike lowered, raised, or neither? (Not that it necessarily led to damage, just curious now).
JhVenezuela, did your friends 2015 also have tail raiser Links, or did it have stock links?
do you know ao any other bikes that have had this failure?
How tall are you and friend? {why did you raise the rear of the bike}
Ride safe, Ted
Jh, I think you figured it out. Definitely the color.
MOB convinced me that the Tail Raiser adds stress to the frame, but I still think there is a problem with the weld area too.
I suspect it's borderline on strength; then add Tail raiser, rough roads, rider weight, speed etc,,, and it failed.
I'll also agree that Kawasaki wouldn't help you if they saw the tail Raisers installed.
Because; {regardless of them causing or not causing the issue} Kawasaki (or any Dealer) would say that was what caused the failure.
I haven't heard of anyone in COG installing Tail Raisers, but many install a taller rear tire.
So, when you get another frame, consider installing a 190-55 tire instead of the stock 190-50 tire {as it raises the rear a bit} and see if that "bit" is enough rise for you.
Ride safe, Ted
PS: Another question. How much preload is dialed into your rear shock spring?
Have you set the sag?