For bar risers on my r 1250r the clutch line needed to me extended 13mm and angled which this adaptor does. I was worried I had to bleed the clutch but as long as you don't move the clutch lever during remove/install its fine...after you finish the work slowly cycle the clutch lever 30-40 times and all is well.
I have 12000 miles on these tires back has a 1000 left on it front like new changing the back not the front. Moab to Canada last year KTM 1290 from Texas buy them