Sram: The X01 Eagle™ drivetrain signals an exciting new era of freedom and the next level of uncompromising performance for enduro racers and aggressive trail riders. Watching the world’s best racers use our parts to battle against nature, physics and time itself, has inspired us to supply them with the most advanced tools we can develop. X01 Eagle™ takes everything you love about our pioneering 1x drivetrains and increases its wear life, toughness, precision, smooth and silent operation. Add to that the 10- to 50-tooth, 12-speed, Eagle™ cassette, and you have a range of gears that gives you the freedom to enjoy the benefit of 1x in any terrain, any location and at any speed. X01 Eagle™ is drivetrain freedom—how you exploit it is up to you.Included:• SRAM Rear Derailleur X01 Eagle 12 speed• SRAM Shifter X01 Eagle Trigger 12 speed Rear w Discrete Clamp• SRAM Cassette XG-1295 Eagle 10-50 12 speed• SRAM Chain PC X01 Eagle 126 links 12 speed• SRAM Crank X01 Eagle DUB BOOST 170mm or 175mm• 32T X-SYNC Direct Mount Chainring• Chaingap Gauge