Goal was to build an aero bike that was light enough to serve as a decent climbing bike. This ruled out building another disc brake bike 
Specs along with actual weights:
53cm Oltre XR4 Frameset in gloss Celeste: 1688g (frame was 1103g, uncut fork was 370g, seat post 215g)
Sram eTap: 673g (went with previous generation vs AXS to save both $ and weight!)
BB86 GXP: 90g
GXP Crankset: 587g (52/36 chainrings with 170mm cranks)
S-900 Brakes: 314g
Ultegra Cassette: 287g
Brake cables: 80g
Metron 5D: 395g (120mm stem with 40cm bars. The topcone that matches the aero spacers was a PITA to source. Thank you Moderator RyanH for sending this to me!!)
KMC Chain: 240g
Lizardskin wrap: 66g
Tacx Ciro cages (x2): 58g
HED Jet 4 Black: 1610g (a little heavy, but awesome braking performance with the knurled alum tracks. A requirement for the wheelset was tubeless ready + wide internal width)
Dura Ace Pedals: 255g
Berk Lupina saddle: 107g
Scwalbe Pro One 25mm: 514g
Sealant: 60g
Estimated Total: 7.024 kg
Off to a bad start - ordered the wrong Metron 5D handlebars. The ones pictured are for the disc brake frame
Actually ended up with the non-Bianchi branded Metron 5D handlebars in 40cm width (Bianchi branded only comes in 42cm). HED Jet 4 Blacks:
Build in progress:
SRAM eTap groupset:
Saddle porn
Final weight, ready to ride with pedals and bottle cages:
Will eventually remove a few spacers after I get the bike dialed in:
