I have been looking around at nytro, competitive cyclist and R&A cycles. I have noticed that Nytro and Comp cyclist sell the Cervelo S2 complete bike for $3120 but R&A sell it for $3500. What are the chances of R&A discounting the Cervelo? I ask this because R&A have a 54 and the others don't.

 Now that they know they have the size you want in stock, your chances of getting a discount just went down.  Ask them.

R and A always quotes at the top of the market however all you can do is ask.

 Uh... isn't the only answer that matters from R&A? 

 If any of us said "yes" or "no", is that really going to influence the price that R&A is willing to sell?