According to my geometry charts, with a standover ht of 28" its most likely the 17.5" model, which is 44 cm (center to center). If you are a 50-52 then its probably too small for you. I'll also warn you that while they are great bikes, a symetry may be heavier than you want for a triathalon. If you don't want to spend a lot of money, and are sure about your size I'd look for a used trek1000, 50 or 52cm. There are tons on ebay at good prices.

If you really like it, upgrade to a trek5200 or its equivalent.

So, to answer your first question is this a fair price, I would say yes if the condition is as stated. But, I do not think its the right size for you. Out of curiousity, how tall are you, and do you know your cycling inseam? How did you feel riding the 50cm bike in the shop? What model was it?

Quote Originally Posted by spotlightmama View Post
Thanks!! I asked the size and this is his response:

"The “standover” height is 28”

When I asked the year, he said he didn't know the exact year. I was thinking of buying it with the stipulation that I would have it checked out by my LBS to confirm that it is as new as he says.

ETA: I just went to my LBS and tried out a 50cm, which he said was a great fit. He said I could also probably go with a 52cm. I don't know if that helps at all...