The complex curves on the sides of the down tube add stiffness while helping guide the air over the sides of the tube toward the rear of the bike. They both have special shapes to clean the disturbed air flowing off the rotating front wheel. They've consulted extensively with aero mastermind John Cobb, and they've combined these lessons learned with details from the Cento1 to make their first-ever road racing frame specifically designed to maximize speed by minimizing drag.The aero priority of the Imperiale is made clear by the soft curves of the head and down tubes. Wilier developed their Imperiale along those lines, and we have it here as the Imperiale/Shimano Ultegra 6700 Complete Bike.Wilier spent considerable time pondering aero issues in the development of their Cento Crono family of TT bikes. If the goal is to ride faster for a given power output, then shedding grams of drag is an important consideration. The cost, the flex, the paranoia about possible fragility: These are things we wouldn't mind sparing ourselves. Sure, we're happy to ride sub 1100 gram bike frames, but we know that there are diminishing returns once you get below 900g. But there is another force at work against a cyclist at speed, grams of drag, and minimizing these grams can be just as important. Product Descriptionįor some, grams are all that matters minimizing them becomes a singular focus. Wilier Imperiale/Ultegra 6700 Complete Bike - 2012 Carbon/Red, L. Compatible Components: Weight: 1130 gMeasured Effective Top-Tube Length: 53.8 cmRecommended Use: road cyclingManufacturer Warranty: 5 years on frame.
Shifters: Shimano Ultegra 6700Crankset: Shimano Ultegra 6700Chain Rings: 50 / 34 T Shimano Ultegra 6700Crank Arm Length: Pedals: Bottom Bracket: Wilier BB94Headset: 1.125 - 1.125 in Ritchey Comp Logic ZeroBrake Levers: Shimano Ultegra 6700Brake Calipers: Shimano Ultegra 6700Handlebar: Ritchey WCSHandlebar Width: Handlebar Drop: Bar Tape:.Frame Material: carbon fiberDropout Type: verticalSteer Tube Type: carbon fiberFork: Fork Material: carbon fiberFork Blade Shape: straightWheelset: Fulcrum Racing 5Rims: Hubs: Spokes: Front Derailleur: Shimano Ultegra 6700Front Derailleur Mount: Rear Derailleur: Shimano Ultegra 6700Cage Length: short.