Just bought a 12. New member. Interested in selling the backrest only? Already ordered the rack and rails from Phil, can’t bring myself to try and deal with another vendor for a second time after disappointment the first go around. Unfortunately other vendor has the part I want. Already had to dispute charges with other vendor. Nothing was sent, cancelled order and told I would be refunded. Did some reading on vendor and figured 24 hours was enough time to wait.