Agreed, if you buy just some random person's track bike, then yes you may get problems. But if you take your time, do your research, and buy from a well know builder or someone that you know takes care of your stuff you can get a great bike for much more than what it would cost to build from new. I bought my track bike used in 2008, I did plenty of research on different options and what I was looking for, and with a decent amount of guidance and consideration I found a great unit. There are plenty others on here that have done similar, just take your time and get the info and assess everything. If you are an impulse buyer, than it might not be for you.