Colossi certainly know how to do it. This frame uses the ritchey breakaway system suitable for travelers as it is easy to take apart.
Check out all the photos here
Holy mackerel. So beautiful.
More photos over at the Colossi flickr.
Damn. I have a soft spot for Colnagos and this is a perfect example as to why.
Check out all the deets over at Pedalroom
Charming Cycle. Check out all the specs at pedal room
The attention to detail is truly amazing. Couple more photos at Feather Cycles