Originally Posted by
noise boy
If you are going to buy used, budget for some maintenance stuff in your purchase, unless it's a never ridden bike it will probably need a chain, and some basic maintenance stuff after purchase. Try and get something that's fairly current, it will make replacement parts/upgrades easier. Personally I would say the sweet spot is 2-3 years old for a used bike.
excellent! ive got my eye on a 2009 Allez right now with about 800 miles on it. the only problem is that all the components are tiagra which i believe isnt very good correct? what would it cost to upgrade it all to 105?