DrTray SpeedKnob Spring Assembly Instructions Thomas Rastall Updated January 21, 2020 21:40 Follow If you have additional questions you can contact us here, or by phone at 888-925-4621 M-F from 7 to 4 PT Related articles The Remote Release Lever of my DrTray is tight, can this be loosened? DrTray Changes? How can I tell if my Speedknob is locked or unlocked? What is the capacity of the DrTray? Will fenders work with the DrTray? Comments 0 comments Article is closed for comments.