Yes, several times. Visp > Dolan Pre Cursa. Motobecane Messenger > Leader Cretin. Basically, as long as the parts will fit on the new frame, then it's worth it. Remember that your Kilo TT has a 26.8mm seatpost, so don't spend any money upgrading it, b/c you won't be able to use it on the new frame. Ditto on the stem.
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