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You definitely should lap the rings. If that is a cold rolled or ground bar it will work perfect for lapping. I usually start with 320 grit and after a few strokes you can see how bad the rings are, If they are very far out I will use a coarser grit to start with, 220 or even 180. If they are pretty true the 320 works fine. /ubbthreads/images/graemlins/grinning-smiley-003.gifJack
You definitely should lap the rings. If that is a cold rolled or ground bar it will work perfect for lapping. I usually start with 320 grit and after a few strokes you can see how bad the rings are, If they are very far out I will use a coarser grit to start with, 220 or even 180. If they are pretty true the 320 works fine. /ubbthreads/images/graemlins/grinning-smiley-003.gif
Jack
