Solo Seat Rear Mounting Bracket fits Harley-Davidson Sportster 1957-78 /Custom Build - Drag Specialties DS902016Chrome rear bracket for use with solo seat springs and front mounting bracket. Fits Harley Davidson Sportster models from 1957 78 or use for custom solo seat installations. Bracket is bolted to the frame then used to retain two springs. The springs have to be fixed on the top stud with a splint and washer (not included). Total outer length 240mm, inner 230mm, width 19mm, height excluding stud 48mm. Distance between the spring mounting studs is 175mm.