Originally Posted by
bikemig
It doesn't matter. You can go back and forth between center and side pull brakes. You'll need hangers for center pull brakes (you don't for side pull). The 720 was sold as a frame.
Also the bike in the picture is a full reynolds 531; the 620 was only 531 main triangle. This is a 720 and the price is pretty reasonable.
Thanks! BTW, how can you the bike in the photo is full 531?