Originally Posted by Lascauxcaveman

Works a charm, and you can mount the ring on the inside or outside of the crank arm, helping out with chainline and chainguard clearance issues. Another trick you can do, if you're real close and don't want to pony up for a new, longer spindle, is add a spacer or two between the fixed cup and the bottom bracket. That's what I ended up doing. Good enough for now, until I get a new, longer spindle.