MZ/MuZ Riders

HEY GUYS I HEAR THAT THE YAMAHA R1/R6 FRONT DISC FITS THE BAGHIRA AND MASTIFF - WHAT YEARS THOUGH,AND HOW ABOUT THE REAR DISC ???,
IS IT POSSIBLE TO FIT A 5" REAR RIM ON THE BACK OF THE BAGGY/STIFFY

Front brake disc from a 1999-2003 R1 will fit the Baggy front. I believe the Yammy part no. is 5JJ-2581T-11-00, but don't hold me to that.

I've never heard of another model that shares the Baggy's back disc. But the stock unit is probably more than adequate. If you want a custom look or want to lose weight, maybe you can find a good condition used one and have it drilled.