Aero is often a short for aerodynamic, and there are several bikes that can be said to be aerodynamic to some degree.
Yes, BMX bikes were used in the 2008 Beijing Olympic and is going to be used in the 2012 London Olympic.
Question doesn't quite make sense, as Mountain Biking is also an Olympic sport these days, meaning there are Olympic mountain bikes. I guess you are talking about road bikes vs mountain bikes. Road bikes are more efficient - for road riding - because they are lighter, have lower rolling resistance, a more aerodynamic riding position and doesn't lose any pedaling energy to suspension in the frame or fork. It's not really a fair comparison though. A MTB ridden off road will be more efficient than a road bike ridden off road.
Road bikes are generally faster and more efficient than mountain bikes due to their lighter weight, smoother tires, and aerodynamic design.
Yes, road bikes are generally faster than other types of bikes due to their lightweight design, aerodynamic features, and narrow tires that reduce rolling resistance.
Road bikes and time trial bikes are typically the best options for speed due to their aerodynamic designs and lightweight frames. These bikes are built for efficiency and speed, making them ideal for racing and high-speed cycling.
Due to stronger and lighter materials, the bikes have gotten lighter. Due to careful design and analysis, they roll easier and are more aerodynamic.
Coaches
Some popular features of 1980s bikes included bright colors, aerodynamic designs, lightweight frames, and the introduction of mountain bikes with rugged tires for off-road riding.
Road bikes are faster than other types of bikes because they are designed with lightweight frames, narrow tires, and aerodynamic features that reduce wind resistance, allowing riders to achieve higher speeds with less effort.
Snowboard cross
Graphite bikes offer advantages over traditional steel or aluminum bikes due to their lighter weight, greater stiffness, and ability to absorb vibrations for a smoother ride. Additionally, graphite bikes are more resistant to corrosion and can be molded into aerodynamic shapes for improved performance.