Bike frames in general are getting lighter and lighter, but is there a resultant decrease in structural integrity - we will only find out in time.

What is amazing, is that there are COMPLETE bikes out there that are coming in at some amazing weights. Two that spring to mind are the Avanti Quantum Silver (http://www.avantibikes.com/race-perf...r.aspx?bid=431) - 5.6kg (12.35 lbs) and the new Focus Izalco Ultimate (http://www.focus-bikes.com/us/en_us/...googlebot=true) - 4.98kg (11 lbs).

I'm sure that there would be rider weight limits set for these bikes......