peter-d. munoz says:the s5 is the fastest road bike in the world! I left Trek, and do not take serously Specialized because none of them today take notes from Cervelo. the s5 is the best combination of a time-trial bike, mountain climbing, and speed. Watch the races this year, and remember Thor's solo rides last year (although he is not on a Cervelo this year, so he will be disapointed) Thank you Cervelo. I will be getting my top-tier 2013 road bike next Feb.