2011 Kestrel 4000 Pro SL Shimano Ultegra Triathlon Bike Bikes & Frames Tri & Time Trial bikes

2011 Kestrel 4000 Pro SL Shimano Ultegra Triathlon Bike. The 2011 edition of the Kestrel 4000 Pro SL Shimano Ultegra Triathlon Bike is the perfect means to satisfy your need for speed. A Shimano Ultegra 2x10 speed group, Oval Concepts deep dish carbon wheels, and Kestrel's proprietary carbon technology combine to make more of a rocket ship than a bike. With decades of carbon fiber experience, Philadelphia's Kestrel brand bicycles is truly a leader and innovator of race design against the clock. The Kestrel 4000 Pro SL is constructed from 800k High Modulus high degree of stiffness carbon, which is 30% more stiff than their 700k carbon, and allows Kestrel to use 20% less material in the production of the frame. The BB30 press fit bottom bracket and tapered head tube further the amount of frame stiffness. Since every second counts when you're in the heat of competition, Shimano Dura Ace bar end shifters are mounted at the end of the Profile Design CX3 aero extensions to facilitate shifting in the aero position. The 2x10 speed Shimano Ultegra derailleurs ensure exceptionally smooth gear changes while the Shimano Ultegra crankset with 5339T chainrings paired with an Ultegra 11 25T 10 speed cassette provides the gearing you need to crush it against the clock. The Oval Concepts W745 aero wheels feature a carbon fiber rim structure and alloy braking surface and sport a 45mm rim height to slice through the wind and onto the podium. Note that the 47cm frame size utilizes 650c wheelstires while all other frame sizes use 700c wheelstires.