Community Bicycle Network
The Community Bicycle Network has been around for over 20 years. That timeline pays off when it comes to hunting for hard to find parts for vintage bikes. You can rent a stand for $12 an hour to work on your own or pay $18 per hour for supervised tinkering (recommended). The CBN will also do repairs for you, but the cost obviously skyrockets. The CBN is also a good spot to check out if you're in the market for a used bike.