It’s been too long I can’t say for certain. Perhaps someone will comment or you can do some research compared to ones on offer from CA they’re pretty good about replying to questions. My asking price reflects the lack of certainty.
Rugh springs are excellent for 750/101’s.
Think they are typically for track but that mostly effected the front, rears are almost stock. Fronts benefit by being stiffer anyway, def helps handling street or track. He had 2 sets for rear, one taller than the other. I ran them until having custom shocks built.