Inward's compression set features a star nut to fit any bar with an inside diameter of 1 1/8 inch. The compression bolt is 9.5 inches long and comes with a washer. The bolt is plenty long so if you accidently install the starnut a bit deeper there should not be a problem.
If you purchase a bar with this set, we will install the starnut for free. Just let us know when you order.