Aero System Shaping Technology & Speed Control SL brake system are the result of countless hours in the wind tunnel. The Advanced-grade composite frame delivers optimal stiffness & light weight. The Vector SLR seatpost offers wide-ranging adjustability while minimising drag. Race-proven frame technologies including the Over Drive 2 steerer tube & Power Core bottom bracket make it a well-rounded performer that shines in sprints & solo flyers. So when the name of the game is speed the Propel Advanced Pro is your winning advantage. Advanced-Grade Composite frame Pro-Spec Advanced-Grade Composite Full-Composite fork with Over Drive 2 Steerer Electronic ready Giant Speed Control SL Ti brakes