I've really gotten into cycling lately (especially with le Tour de France) and realized to progress with my cycling I need to get a better bike. Right now I have a Magna mountain bike, which I've had for the past 5-10 years (since 8th grade) and it just doesn't perform like I need it to.
I went by a bike shop today to get fitted and found out I ride a 55-57 cm frame. I've been looking at road bikes in the $400-600 range (since it's my first road bike) and have been able to find these bikes so far:
giant-bicycle.com11474Open ↗
[url="http://www.schwinnbike.com/products/bikes_detail.php?id=724http://www.raleighusa.com/items.asp?deptid=5&itemid=264"]schwinnbike.combikes detail.phpOpen ↗raleighusa.comitems.aspOpen ↗[/url]
diamondback.comitems.aspOpen ↗
dickssportinggoods.comindex.jspOpen ↗
dickssportinggoods.comindex.jspOpen ↗
schwinnbike.combikes detail.phpOpen ↗
I'm especially skeptical about the road bikes @ [censored]' Sporting Goods because of how inexpensive they are. I have realized from watching le Tour de France that both TREK and SPECIALIZED seem to be the best and most popular racing bikes. And so I'm wondering if I should go ahead and get one of the bikes from the links above (brand new) or try getting a Trek/Specialized bike on eBay for $400-600 (used and outdated). I appreciate any advice.
p.s. - I have no idea if I want an aluminum or steel frame