airhead clutch cable

Not sure how old my current clutch cable is, so I am going to replace it in my 1983 R100. My new BMW cable, has a hexagon shaped brass part, that is on the perch end. The old cable, has a round brass piece, at the perch end. So, will this hexagon shaped end, be compatible on my cable perch...

Hello! I've joined the community to see if you can help me diagnosis my problem. The bike is a BMW R80RT, new to me, been driving for a year, about 80K+ on it. Over the winter I did a spline lube and replaced the rear main seal. Have been driving it around no problem. The incident: going up...