I’m on 54(53) actual top tube 54 effective
Maiden ride this morning rides similar to my tcr which is a compliment but stiffer at front and more stable .. Tapered head tube and 5mm longer back end over giant .. Giant climbed well with tight back end but could get bit skittery at high speed .. This rides very well I’d say neutral .. No nasty surprises just confidence in corners and does what you want 😀
Build as pictured 15.6lbs which is quite impressive .. I have standard shimano skewers(couldn’t stand creaking from Ti ones) and normal inner tubes and chunky bar tape ..
Sans pedals(as companies weigh) it’s comfortably under 15lbs
Light inner tubes/nokon cables/Ti skewers and some Ti bolts would get it close to 15lbs but it’s really nice planted ride as is 8)
Some pics fully built
https://flic.kr/s/aHskmTBqLh