Middle TN Bike Shops

I really don't think there is a 'good time of year' to buy.  Deals come and go.  But it isn't as easy to say that every January bikes get marked down to prepare for the next years models.  Unfortunately, most shops' hands are really tied.  For instance, Cervelo really dropped the ball this year.  They had production issues like crazy.  Trying to get a P2 is really difficult right now. And I can't imagine them having an inventory to mark down in the winter. 

The key, imo, is to form a relationship with a bike shop and buy from those you trust.  So you need to establish your budget and stick to it.  Be upfront with the shop. 

For what it's worth, I have NEVER test ridden a bike that I purchased.  There isn't a need.  What you need is for it to be the right size and be fitted to it properly.  Beyond that, there isn't much you can tell by just rolling down the street on it. 

Corey, There are some really fine shops in Middle Tennessee that know tri bikes, so Acme isn't the only option (although I hear they are a quite a fine shop--as is RB's).

But I have a suggestion for you to consider.  There is a Nashville cycling coach that does professional retul fits.  Most of his clients are triathletes, he knows triathlon fitting.

He doesn't sell bikes and that's probably ideal.  Once you have your fit coordinates you will be completely able to assess the fit of any bike you are looking at, even over the internet.  This could open up some great options for you to buy used on ebay.

http://www.endeavorperformance.com/index.php/bicycle-fitting