Am I the only one with coworkers that are totally clueless about bikes that keep asking you to look at Craig's List adds? One of the ******** I work with has decided he wants to do a Tough Muddier race next year so he wants to start riding a road bike. He keeps showing me adds for bikes that won't fit him. At first it was kind of funny but now its getting kind of sad. He has shown me adds for a 48cm WDS bike and a 59CM bike. Asking me if he should buy them. At this point I want to tell him to buy a 20in and but aero bars on it. I spent most of my 20s working in bike shops and I am still amazed at how people think they don't need bike fits because they just want to get in shape.
I had this happen a previous job.
I actually wrote up a short brochure or walk through on what to look for in a used bike. It included a list of 5 things to look for and 5 things to avoid in a used bike and a separate bit about children's bikes
Here are my list of things to avoid in a used bike (remember this was designed for novice riders):
5 things to Not do
1. Unless you know the history of the bike (Know the rider well and know the bike has not been crashed) avoid used carbon fiber frames and forks especially if the bike is over 5 model years old
2. Do not buy a used bike from an individual.(See #1 above)
3a. Do not buy a bike without knowing that it will fit
3b. Do not buy a bike that a child will "grow into"
4. Do not be too concerned with frame materials especially for an entry level machine. An entry level bike may be carbon fiber but good bikes can also be made from aluminum or steel.
5. Do not believe either the best or worst review of a model of bike
5 things to do:
1. Do buy a used bike from a bike shop
2. Do ask about any warranty for parts and materials
3. Do look for aluminum in components like derailleurs, rims and brakes because they are generally higher quality and avoid stamped steel components like brake calipers
4. Do remember that the most important components for a new rider is the saddle, then the wheels then the other stuff
5. Do take your time to become conversant with the terms and definition of words used in bicycling. Doing this will allow you to be better able to make decisions about the type of bike you need.
I imagine there are a number of people on this forum that will disagree with the first couple of "do not" statements