I visited frame builder Mark Nobilette's shop today. I'll write more about Nobilette in a day or two, but first I have a contest.
Nobilette has stacks of True Temper bicycle tubing all over the place, but that's not the interesting part of this photo. Up toward the upper right of this photo you'll see what appears to be a large chainring. Click on the photo to see it better. That is, in fact, an 80 tooth chainring.
The first person leaving a comment correctly describing the use for this 80 tooth ring wins a prize: a $10 gift certificate from Amazon.com.
Here's a hint: It's not for a recumbent bike or trike. Mark and John are both disqualified from this contest. You must leave good contact info to claim your prize.