Purchased a Seat, Road Zeppelin Air Adjustable, while finishing the installation, I dropped the screw that secures the seat. So I jacked Trike up, looking for the screw that I know didn't hit the floor, I rotated the back tires thinking the screw could have gotten stuck in the rear sprocket, while rotating I see at least one grease fitting on the rear belt sprocket, I though there weren't any grease fittings, guess I was wrong. Just a heads up for others. Found the screw and everything in working fine.