Designed to fit older steel tandems, but could also be used for more modern alloy. Set includes 2 x boom (245 x 20 mm), 2 x vertical seat tube (207 x 25 mm), 2 x top tube (183 x 15 mm), 2 x fork crowns (29 x 25 mm), 1 x head (58 x 49 mm), 2 x forks (88 x 17 mm), 2 x seat stays (125 x 15 mm)
