Aluminum and cromoly frame, main tubes are aluminum, stays are cromoly. Sakae alloy crankset, Shimano Light Action Derailleurs, Weinmann caliper side pull brakes. Avocet leather covered saddle, Shimano high fanged hubs laced to 27″ Araya rims. This bicycle has been through our complete mechanical restoration process; all bearings including headset, hubs, bottom bracket have been overhauled, all components removed cleaned and adjusted. New tires, tubes, rim strips, chain, freewheel, bar tape, stainless cables and housings.