The 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. Sizes S, M, M/L, L Colours Pearl Blue Frame Advanced-Grade Composite Fork Pro-Spec, Advanced-Grade Composite, Full-Composite Over Drive 2 Steerer Shock N/A Handlebar Giant Contact SLR Aero Stem Giant Contact SL, 8-degree rise Seatpost Giant Vector Composite Saddle Fi'zi:k Arione CX, MG rails Pedals N/A Shifters Shimano Ultegra 22 speed Front Derailleur Shimano Ultegra Rear Derailleur Shimano Ultegra Brakes Giant Speed Control SL Ti Brake Levers Shimano Ultegra Cassette Shimano Ultegra 11-25 Chain KMC X11L Crankset Shimano Ultegra, 36/52 Bottom Bracket Shimano, Press Fit Rims Giant P-SLR 0 Aero Wheel System Hubs Giant P-SLR 0 Aero Wheel System Spokes Giant P-SLR 0 Aero Wheel System Tyres Giant P-SL1, front & rear specific, 700x 23mm, folding