The Left Bank handlebar is a full 49cm wide, 7cm wider than many traditional French bars, but still narrower that many British/American-style bars. The grips flare outward a bit. The stem clamp diameter is 25.4mm and is bulged, rather than sleeved, so it will not squeak. Polished alloy. Reach is about 18cm. These bars are available in two tubing diameters, 23.8mm road sized and 22.2mm mountain-bike- sized (clamp area is 25.4mm on both): 22.2mm (MTB-size) bars accept MTB brake levers and clamp-on shifters. They do not work with bar-end shifters. The only inverse levers that work are Dia Compe levers in the 22.2mm size. 23.8mm (road-size) bars accept standard inverse brake levers, bar end shifters, and 23.8mm city brake levers. They do not accept MTB levers or shifters.