There will be track specialists. They may not appear so from outside but the track boys need to get their kit from somewhere and some of those competing will be working in the industry. For us, It's Norwood Cycles which, even when you walk in the door, just looks like a small, long established bike shop. It's only when you ask specific questions that you discover the track background. Just to to your local velodrome and ask, or ask in shops, good shops are quite happy to send you to the right place, those that aren't just don't get my money. Similarly, there'll be at least one hipster store there - that's where joining Fixed.Org will help (just ask). A local shop that gets big wraps from the local Adelaide scene looks exactly like a high end roadie shop when you walk in, and they roll their eyes as though you're some interesting sort of creature when you tell them you ride fixed, but ask specific questions and you get good answers. The shops and the local help is there, the trick is finding it. Lots of idiots who don't deserve your money but also shops who do.