Originally Posted by cbmw1150
Where does one get a 15mm Magura master cylinder ?
See my post above. Your BMW dealer. You can get a 15mm or a 16mm.
If you want to keep the stock switchgear gotta use the stock MC, as the brake lever perch has the switches integral to it.
I use a 15mm with the two pot 48mm Brembo. Stock MC is 13mm. I did this because I never liked the eccessive brake lever travel with the 13mm, it made it difficult to modulate the throttle and brake at the same time. If i've lost some mechanical advantage I might have regained it with a MAP 320mm kit.