The evolution of the bicycle shifting continues. Shimano now has its new electronic Dura Ace Di2 gruppo. Sure there have been other companies that have tried to master this but I think Shimano is on to something with this one. Shimano Dura Ace

I have been getting used to riding with aero bars over the past 150 miles or so. I have the Airstryke because it came with my bike (a Specialized Multisport Transition, so essentially a road bike with a few features that make it a bit more like a tri bike; I've mostly just been riding it as a road bike).