Shimano Ultegra Di2 Remote TT Shifter Set

While electronic shifting has several advantages for road bike, the advantages are even greater for TT bikes. Of course perfect shifting, no more dropped chains, and the lack of moving, oddly routed cables and housing are advantages for everyone. But the big difference between TT and road bike shifting is hand position. Not only is shifting on aero bars awkward and inconvenient, but there is a moment while you're grip is changing that's actually kind of dangerous. Shimano Ultegra Di2 Remote TT Shifters change all that with the touch of a button. Instead of adjusting your hand position on the bar, you simply touch the shifter button with your thumb, and it gives you a perfect shift every time. No more friction. No more cable adjustments. No more scary, out of control moments.