Solitude 29er (4.52lbs frame only) drop bar singlespeed with On-One carbon forks, Phil Wood / DT TK7.1 rims, WTB tyres, Thudbuster post and other reliable but not really light kit = @27lbs Designed for all day / multi day rides with bivvi kit (another 10-15lbs) and minimal maintenance.
OS Bikes Blackbuck 29er EBB (5.4lbs frame only) with Juicy 7’s, Mav SC32’s, Hope SS hub / DT X470 rims, WTB Exiwolf / Stout tyres with slime tubes, Mary bars, CC Thudbuster post, cheap Race Face cranks @29lbs ish Designed as my hooligan bike for messing about on, ie 3-4hr rides with the club in the Cotswolds / FoD.
I know I could get them lighter but only at a cost (financial, reliability, maintenance) and TBH I would not ride any better :)
SSP