If you're making the jump to a 1x11 drivetrain, you'll need a way to shift that fancy derailleur across that big ol' cassette, and the SRAM X01 Trigger Shifter is just the piece for the job. It's reach-adjustable, which is a huge benefit to those with both smaller and larger hands, and it's also MatMaker X compatible, which clears up space on your handlebars.