Shimano Dura Ace Di2 FD-7970 Front Derailleur 34.9mm Clamp 10 Speed Road Bike subcategory-rearskewer The X-Synch technology offers a

The X-Synch technology offers a great solution for 1x setup since the mud-clearing recesses for the inner chain links and rollers help deal with any messy terrain you are riding through

Effective Top Tube: 522 mm

If your mountain bike rolls with a BB30 bottom bracket

SRAM Rail 40 Aluminum Tubeless 27

Shimano Dura Ace Di2 FD-7970 Front Derailleur 34.9mm Clamp 10 Speed Road Bike subcategory-rearskewer The X-Synch technology offers aThe photos pictured in this auction are of the actual item for sale Condition PRE OWNED Normal wear to derailleur cage from use Specifications Brand: Shimano Model: Dura Ace Di2 FD 7970 Mount: 34. 9 mm Clamp Weight: 140 grams