Buy just the frame set and and ditch the Boncrapper parts. I run 823/ Sunn Ringle's w/ Maxxis tubeless and still keep my Session at 37lbs. The RS Worldcup ,ti spring and I-beam seat helps. The price for these is 6000.00 Frame alone is 2100.00 You can buy alot nicer parts with the extra loot. Complete bike purchase is a rip off. Especially when Trek owns Bontrager.