The old style Zenith Pelvic Drop Cocking Rod had an extra hole for the stopping pin. They no longer make this design. The drilled hole was too big and it would make the metal weak and cause the rod to break. The Zenith Pelvic Drop Stop Collar is the new design and is an easy install.
Remove the drop handle.
Then slide on lock collar and adjust
Replace drop Handle
Warranty Information
This New Zenith Pelvic Drop Stop Collar with Bolt is 100% guarantee to be free of defects for one year from date of purchase.