2018 large Lightest UCI approved mtn bike at time Custom build tubeless x drive set up. Sub22 lbs Rock Shock World Cup 100mm boost one of the very lightest possible Race Face NEXT carbon crank 175mm 34 tooth narrow/wide chain ring XT: brakes 160mm disc, shifter, cassette(11/42), derailleur Thompson carbon bars FSA stem Hand built rear wheel XTR hub Stan's no tubes crest with Swalbe tubeless Thunderburt 2.1 tires. Front wheel and spare rear Mavic XA lite with thunderburts Contact seat and Easton EC90 seat post Like new condition and a lot invested. Ready to rip