I've never ridden a road bike before but because my bike was stolen last night -- at work no less -- I'm deciding to buy a speed demon that I can ride on the road versus the sidewalk. Just curious what recommendations people might have. I've hit speeds of 30 with a hybrid bike but I'm assuming with a road bike I will be able to do that regularly and without much effort. The one worry I have is the sturdiness of the bike and its ability to ride over uneven surfaces and such. Certain parts of town may have me on the sidewalk and I don't want to be flying along and find out a road bike can't handle hopping a curb or taking bumps at high speed. So can someone speak about random brands (browsing cl I see a lot of shimano, schwinn, etc.) and the wear and tear / performance of road bikes for someone only familiar with mountain bikes?