Yeah, The seat looks heavy, But the bike is looking good!!!!!
I use selle italia and Tioga Spyders
My Tracer sits in Under 25 and the Carbon Hard Tail is under 22
The new bike I am hoping will be under 25 as well. I am building it with all carbon and left over Ti.
I purchased Carbon bars and a stem. I am going All Shimano (2 by with a 42 big ring).......but maybe a crankset. I am going to use 2.1 tires mated to the 27.5 wheels.