Ritchey Classic Butano Drop Handlebar - Aluminum 44cm 31.8mm SilverRitchey Classic Butano Drop Handlebar Aluminum 44cm 31. 8mm Silver. The Classic Butano handlebar features a shallower 118mm drop for better accessibility and control whether in the hook or on the hood and features a 12 degree flare thats become standard on modern bars for road and gravel. The handlebar doubles down on comfort with a 4 degree sweep on its ergo top and a modest 73mm reach. Compatible with the Shimano EW RS910 junction box the Butano is