I have an almost brand new (less than 500 miles on it) black Sugino Zen chainring in 47t
Would like to trade someone for a black Zen in 48t
47t gives you tons of skid patches with just about every cog but the local velodrome is making it a rule that only 48t are allowed.
Just a little chain oil in the picture but it's perfect/no scratches. Only interested in a black 48t.
http://www.pedalroom.com/bike/bianch...12#photo207468