I am selling my singlespeed cross bike. This bike has a 57 ETT. The frame utilizes a brake cable seat tube pass-thru or piercing. It works great and is super smooth. The Thomson Masterpiece seatpost has been modified so that the brake cable will pass through it as well. The measurement from the top of the saddle to the center of the bottom bracket is 77.5 cm approximately. If you have the same or shorter measurement then no problem. If you have a longer measurement you will need a new seatpost which I can help you out with.
The bike weighs 16.3 lbs with pedals.
Compete specs and pictures can be found on my craigslist ad: