Welcome to Q&A with me - Victor Ragusila.  I am the captain and mechanical lead for the Eta team. We get a lot of questions about our speed bikes, so below are four videos answers to our four most commonly asked questions.

1) Why is our bike so much faster than the best upright bikes, such as the ones used in Tour de France?

2) Why don't we use gold ball dimples, which are so great at making golf balls more aerodynamic?

3) How many gears do we have in our bike to achieve 145km/h?

And 4) How do we see outside without a window?