A road bicycle is a type of bicycle with narrow tyres. They usually come equipped with drop bars, which curve down and backwards, allowing for a variety of hand positions.
Road bikes may be constructed from many materials, although steel, aluminium, and carbon fibre are the most common.
Road bikes are used in most road races (with the exception of some time trials).
The road bike is designed to go fast on a paved road. The disadvantage is that it is extremely sensitive if the road is not mirror-smooth. If you need help on choosing the right frame size for your road bike, you can use this [frame size calculator].