Sigh. Phil caught me yesterday riding home on a bike that was not the one I built. I'm ashamed to admit it. At 46/19, the gearing on my pride and joy was too harsh for some of the hills I go up. About a week ago, I injured my back trying to grind up one of those hills.
I've gotten a 42-tooth chainring, and I'll be installing it this weekend, and hopefully, taking the gray beast out again next week.