There are several sites that offer good information on racing bikes. These sites include Performance Bike, Wikipedia, Trek Bikes, Bike Radar, and R&A Cycles.
Viking has some good bikes. They make a full range of bicycles. The Milano is "entry level" with it's generic parts and entry level Shimano components.
Some safety tips for racing bikes include wearing a helmet at all times, following traffic laws, staying alert and aware of your surroundings, using hand signals to communicate with other riders, and maintaining your bike in good condition.
There are many places online that sell racing parts. A good place to find answers is at www.edmunds.com. You can find good reviews about car racing part from their registered members.
www.BloodHorse.com is a good resource with clips from inside informantion. If you have Dish, go to channel 404 and it's HRTV (Horse Racing TeleVision).
A good bike to use in a time trial road race would have to be a time trial bike. It is a racing bike that is designed for use in a individual race. They do have racing bikes also.
In my opinion, Weslo fitness bikes are a pretty good type of bike to use. You can find them at most stores that sell stationary bikes. A good store would be Sears.
Your local newspaper may be a good source for used bikes. Local Bike Trader helps you find used bikes in your area. You can also try the Bicycle Warehouse.
Racing engines are a specialized sort of engine and therefore cannot be bought in normal places. A good place to find them would be Ilmore which seems to do a good range of them.
Craigslist.com or Recycler.com
There are many resources available to find information about the history of motor racing. Wikipedia, while content is mainly user-generated, would have a good deal of information. Offline options would be an encyclopedia that was published sometime in the last ten years.
Road bikes are designed for fast and efficient riding on paved roads. They are lightweight, have narrow tires, and a more aerodynamic frame compared to other types of bicycles. This makes them ideal for long-distance rides, racing, and high-speed cycling. Unlike mountain bikes or hybrid bikes, road bikes are not suitable for off-road terrain or rough surfaces.
Bicycle stores have good bikes, not department stores.