Right... So I just finished reading the TriSports review of DI2 and have to question their final paragraph: "The only down side to this gruppo is its price. To upgrade from Dura Ace 7900 is roughly $2,500.00. I will say that this is really worth it so save your money for this upgrade."

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