What is a Road Bike ?
Frame material :
Beginner road bike frames are normally aluminium or steel. Aluminium is a light, strong and affordable material for bike frame manufacture and there is carbon fiber for more advance riders because frame is lighter but there price difference.
On a beginner road bike, you will probably find shallow section, high spoke count wheels. This is to provide the rider with confidence, and ensure the wheels are durable and reliable in all conditions.
Gear System or Group set :
The transmission on a starter road bike will likely be "8, 9,10 or 11 speed" - which refers to the number of cogs on the cassette at the back. Most road bikes will then have a double or triple chain set on the front ,The more gears your bike has, the more chance you have of being in the "perfect gear"; though the highest gear and lowest gear are often similar, regardless of how many "speeds" your gear set-up is.