Craigslist

Mountain Bikes and Gear
GearTrade Wants to Help Consumers Take Advantage of the Outdoor Gear Glut
  1
Mountain bikes
When is a Mountain Bike 'Too Old' to Justify Buying?
  18
MTB Tips
How to Buy a Used Bike Online: A Practical Guide
MTB Tips
How To Sell Your Bike Online: A Practical Guide
  4
Culture
Man Buys $8,000 Mountain Bike Once Owned by Floyd Landis - For $5
  1
Culture
Mountain Bike Crime Report: Doped Up Tires & Stolen Goods
  3