So you have a seatpost in a size you'll never use? A derailleur you haven't used since you "upgraded" your bike from six speeds? Or a single odd pedal?
Or maybe you have a bike you haven't gotten around to fixing and don't want to attract crazies with a Craigslist ad.
Well, you can trade those parts and bikes for...beer.
Yes, you read that right. At least, you can make such a transaction if you're in Albuquerque this weekend. Canteen Brewhouse has teamed up with the Esperanza Community Bike Shop to collect donations until tomorrow.
A bike will get you a beer, and parts will get you a discount.