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Shimano Dura-Ace Di2 FD-7970 Braze-On Front DerailleurGet smooth, electronically controlled gear changes with instant reaction, perfect precision and automatic trim with Shimano's digital front derailleur.
- Integrated CPU monitors both front and rear shifting for precise and consistent derailleur alignment
- Programmed motion allows the front derailleur to track the chain, eliminating chain drop when shifting inward from the big ring
- Automatic trim function moves the chain guide in response to the gear position of the rear derailleur - no more concentration on trimming when riding
- Forged aluminum and composite construction reduces weight without sacrificing durability
- Must be used in conjunction with the Shimano Dura-Ace Di2 7970 Front Derailleur Wire Kit
Shimano Dura-Ace Di2 FD-7970 Braze-On Front Derailleur
- clamp diameter:
- Shimano 10-speed
- max. chainring: