Kestrel RT 1000 SL-Ultegra Di2 (2012)

Research shows that you can be both fast and comfortable on your high-performance road bike—hence, the growing popularity of the endurance road bike. Kestrel’s contribution to this category is the ultra-sleek, RT 1000. For 2012, the RT 1000 is offered in a Super Light (SL) version with Shimano Dura Ace and a standard version with Ultegra and 105 components.