Where can I find a 130 bcd single speed chainring with 58 or 60 teeth? Where can I find a 130 bcd single speed chainring with 58 or 60 teeth? I am attempting to setup a goldsprints setup using a very large front ring and a small rear freewheel.
I've been looking for the same thing for a while. Rotor makes a ring that might be of interest: A Q-Ring (oval shape to maximize power stroke) in a 56t in a 130bcd.  That ring goes up to a 59t at the largest point. They say that it is effectively a 58T ring.