Road Race Bike Facts

What is the latest high-tech material used for making Road Race Bikes?
1. Titanium
2. Carbon Fibre
3. Air-craft Grade Aluminium
4. Steel
The UCI* lowest weight limit of all road race bicycles is?

*UCI = official international governing body of cycling (think cycling version of FIFA)
1. 15.5kg
2. 2.6kg
3. 10.2kg
4. 6.8kg
What is the max no. of rear gears Road Race Bikes have currently?
1. 11
2. 9
3. 7
4. 5