After a lot of research and a "gift" from my wife I was going to upgrade my new purchase to either the 7.5 or 8.5 and potentially even the .7. However, I really need to ride both for a couple of miles to determine which is right for me (and sized right).

However, I'm about to give up on Trek. I have now gone to three dealers including one that Trek's site indicates as a "best". None of them stock any of the high-end Treks meaning anything over a x.3. They will order a bike with a deposit (non-refundable) and none of them allow for test rides. Well, that's not totally true...one said I would be allowed to ride a lesser model around the parking lot (the lot holds 15 cars).

So, where does one go to look at a Trek bike and get a test ride? I live on Martha's Vineyard, but am willing to travel up to Boston (3 hour drive and a $100 ferry ride) if necessary. Anyone got a recommendation?