I built this bike for my spouse , basically never riden . Upgraded for lightness , all top line new Sram Eagle drivetrain . Sram XX1 Eagle carbon cranks with 34t sprocket , Sram XX1 Eagle drivechain . Sram XX1 Eagle 10/ 50 cassette . Sram XX1 Eagle derailluer . New E thirteen XCX r rear carbon wheel 29 x 24 mm with new Schwalbe G One tubless 29 x 2.00 tire rear . New E thirteen Race carbon 2 wheel 29 x 28 mm with bew Schwalbe G One tubless tire front . Niner carbon mtn bike fork . Niner carbon seatpost , New Specialized saddle . Zipp 90 mm x 17deg bar riser . Renthal 31.8 carbon fatbar . Sr...