My Cernitz ButterCup II Singlespeed. With these wheels 16.8 lbs. With my Eastons EC90SLX wheels, 15.75. This bike is a dream. I highly recommend Neil Cernitz. His blog can be found at www.cernitzbike.blogspot.com
This is the second cyclocross singlespeed he has built for me. The first one was smashed when I was rear ended last december on the way to a race. It was on a trunk rack. Thank you insurance for paying for this build.
He mainly builds cyclocross bikes at this point.