Super Fly Elite SL custom build, lightest MTB frame Trek made, with the Roll Wrap seat tube that provides a good amount of vertical compliance to the ride.
Frame: Superfly SL Hardtail with BB95 BB and 12mm through axle
Fork: Fox Float 29 w/ Terralogic FIT damper - works as a lock out when stomping out of the saddle, but soaks up bumps on rough terrain
Rear Wheel: Stan's XC LTD with XD driver, new 2016
Front Wheel: Bontrager Rhythm Elite 29
Drivetrain: SRAM X1 11 speed derailleur and shifter, XO-1 Cassette. new in 2016
Crank: Bontrager Race X Lite GXP Carbon w/ 32T SRAM Direct Mount chainring, new in 2016
Saddle: Bontrager Evoke w/ Carbon Rails
Seat Post: Bontrager Rhythm Elite
Handlebar: Bontrager Race X Lite, OCLV Carbon
Stem: Bontrager Race X Lite, 90 mm, other lengths available
Grips ESI Chunky
Brakeset SRAM XO Trail hydraulic disc, 160 front, 140 rear rotor
20.5 lbs as shown, can easily build it below 20 lbs with a few part swaps.