Originally Posted by
rubiksoval
If BMC's TT bikes really weigh 2kg/4.5 lbs more than their road bikes, I'd start looking as to why they have almost a 20 lb bike.
That's amateur-league.
That's actually pretty normal -- because of the wheels, seatpost, and frameset. The PRO rear disc wheel ALONE weighs more than their road bikes' complete wheelset. It's a very heavy wheel. The wheels account for more than 1kg extra. The TM01 frameset probably has at least .5kg on the SLR01 frameset. Pro triathlon and TT bikes routinely weigh 20.5 to 22 pounds, ready to race. On a flat course, it doesn't matter.