Shimano Ultegra Di2 offers the most precise and reliable shifting imaginable, at the push of a button. Adjust the derailleurs once, and the intelligent, auto-trimming system returns derailleurs to the same position every time. The intuitive and user-friendly design can be set up at home and accommodates any frame; new or old.
The Shimano Ultegra ST-6770 Front Wire connects the left and right shift levers to the rest of the system. This integrated wiring harness features a battery life indicator and unique derailleur adjustment, allowing you to tune the derailleur on the fly.
Special note: Due to differences in wiring, Shimano Dura-Ace Di2 and Ulegtra Di2 are not compatible.
Place an order of $100 or more,
and receive loyalty credits
on qualifying items.
Most regular and some sale items
earn you loyalty credits.
Look for the red message on
each item page.
Some items only show rewards
when they have been added to your cart.
Simply enter your gift certificate
at the time of your next order.
Rewards are not transferrable,
or redeemable for cash or gift certificates.
Rewards will be adjusted on,
returns and to reflect any unearned value.