I just picked up a Mercier Draco Columbus Zonal Al frame for what I hope is a good deal. It needs a BB (double) but I'm not sure the threading or size. I've used 68x109 on my Fuji touring frame set up as a double. I've emailed a couple sites selling the bikes but have not gotten replies. Is Italian threading 70 x 1xx?
Can anyone point me to the correct BB specs for this frame?