I thought Lightweight was just for show. Sort of like, a Patek watch, you don't wear it, keep it in safety deposit box or in a glass box for show, you wear the Seiko presage for actual wear. I thought these were something to that, they were made to be built up, looked at, bike porn, after done with it, put it away somewhere safe. And then take out the CAAD 12 with AL rims and disc brakes, as that was meant to be ridden, and abused.