EDIT: Sold!
I recently did the 520 conversion. So, I have these 530 sprockets that were on my bike for about 2500 miles. They would be perfect for someone w/ a stock set-up to make the 15/41 gear change till your stock chain wears out.
Front is an AFAM and rear is a hard anodized Sprocket Specialist. They were purchased a few months ago from Brian at Sprocket Center.
Modified by dhdrider at 11:39 AM 6/1/2005