Ultra-long distance fixie riding update:

Completed a 600K (375-mile) event on the IRO Jamie Roy, still sticking with the 49x18 gearing. The route had over 23,000 feet of climbing on it, and I finished in just under 35 hours. And then this past weekend, I rode 307 miles at the National 24-Hour Challenge. Same gearing. That was a mistake. The course was too flat and I ended up dropped from the fast groups and was time-trialing for most of the ride. I was aiming for 400 miles and called it a day with 4:45 left on the clock when I realized that getting 400 miles wasn't meant to be. Still, 307 miles in just over 19 hours on a fixed gear is not too shabby!

Anyway, anyone interested in putting some real miles on your fixed-gear bikes, know that it can be done even by mere mortals riding bikes that weren't designed for that kind of use.