I swapped out the sprockets on my F800GS to 15 and 47 for BDR use. (Yes, I'm getting old.) I've bottomed out the chain adjustment and only have the minimum sag spec in my chain. I am not comfortable with this. I can't find any sort of two link extensions, and yes a new master link too, online. I'd rather not have to replace the whole chain since it has less than 1K miles on it. Any suggestions?