Some critical points though: the grommets were not able to take di2 cables as they came. I used a small saw to cut a slot in them to mount them and had no problems. Also guiding the cables through the handlebar takes some patience and thought - Think before you put yours in!
As for the wheels: tuffcycle are a young brand and they were actually the reason why I started this build. I was sceptical about their claims that they built wheels that can compare to the high-end stuff from A brands, but honestly these wheels are just that: perfect ride, lightweight and especially strong. So much even that I joined their family (yes I am biased


All-in-all:
frame + Fork: Workswell WCB-R-166(D) => 56 cm. 1456 grams on scale
Stem: Workswell carbon WSC-005 => 8 degrees, 120mm. 265 grams on scale
Handlebars: Workswell WHB-017 44cm. => sizes up like a 42.5, so choose one wider than you are used to. 228 grams on scale.
Groupset: Shimano R8070 => weight: strong mostly, choose Dura Ace for lightweight. 3900 grams on scale including smaller parts like bottleholder, saddle bag etc.
Wheelset: Tuffcycle Disc w. 25mm Continental GP4000SII tires => 45/45mm, Simplus hubs, 1496 grams on scale w. rim tape installed.
Total weight on the road 7,61 kilos.
If you want any more pics or information (especially regarding the wheels

Enjoy the pictures!