The previous seatpost was a full carbon easton ec90. 6g lighter thant the thomson but it was made for classic round shape rails and the screw was three thread in with my oval rails tune. For 6g I chose security
short summary:
105 5700 levers and rear derailler
105 1055 front derailler, front shifter and brake calipers
105 5800 crankset, chainrings, pedals and chain
105 5600 cassette
The previous seatpost was a full carbon easton ec90. 6g lighter thant the thomson but it was made for classic round shape rails and the screw was three thread in with my oval rails tune. For 6g I chose security
short summary:
105 5700 levers and rear derailler
105 1055 front derailler, front shifter and brake calipers
105 5800 crankset, chainrings, pedals and chain
105 5600 cassette