I chose the On One as it is amazing value for money (Full GRX 810 2 x 11 group, decent frame etc)
Most of the parts it comes with are quite heavy, raiding the parts bin/aliexpress has helped with that, taking 1kg to start with..
Stock Parts:
Selcof Zeta Bars - 322g swapped for FSA Carbon - 200g
Seclof Zeta Post - 291g swapped for Elita One - 105g
Selle Monza Saddle - 241g swapped for Aliexpress Carbon 112g



Note: Darker blue weights are based on Internet analysis, lighter blue are actual weights
Will look to change the wheels at some point, the idea being I have 2 sets, one with fat road tires (winter commuting) and the other with gravel tires for blasting around