Originally Posted by ebrabaek
I actually have. I am in the planning stage of a Carbon Fiber/K-39 chain guide. It most likely would solve this.
Maybe not, I have installed the BRP guide and still have to listen to Sir Slap a Lot making his presence known. FWIW with standard sprockets and chain it never happened, installed Supersprox and he reared his ugly head. installed a DID chain and he calmed down a bit, but is still a distraction.
After talking to a mate with a KTM 990 I now just ignore it, or try not to have the engine revs/ground speed in the slap spot.