Petrol tank steady buffer rubbers for Triumph , BSA oil in frame (OIF) models T120 T140 TR6R TR7, Bonneville, Tiger, Trophy. OD 1-11/16, Ht 3/4in, buton Ht 7/16in, Button OD 15/16in, with depression in top face. Original Part Number: 83-4931; 82-9062 - steady rubber (2 reqd)