Hey Z dog,
Good news that everything looks good and went back together.
Meat is right about the torque idea but no way could I lock the sprocket by myself and use a torque wrench. Not even sure I would have trusted a torque wrench for that application.
I replaced the bolt(pre loctited) and washer and used the 3/8 drive airwrench and just let it hammer.
I wanted the bolt tight after all I read. I don't see how you could break that bolt unless it was defective. To me the whole sprocket mounting system is well built.
Bill in Tomahawk, WI.
'02 KTM 640 Adventure-lowered
"On the road there are no special cases."
Cormack McCarthy-The Crossing
The faster it goes the faster it breaks.
And high performance=high maintenance.