You can now run a 1 x 11 setup with hydraulic brakes using SRAM’s Apex 1 groupset and choose whether or not you want flat- or drop-bar shifting. The long-cage rear derailleur ($74) will accept a 10- or 11-speed cassette with up to 42 teeth. The crankset offers ring sizes with 38, 40, 42 or 44 …