Details
Shimano's Dura-Ace Di2 Front Derailleur Braze-On Adapter is the correct mount for electronic Di2 derailleurs and their fast powerful servo motors.
Your seat-tube diameter determines the needed derailleur clamp size.
Part Numbers
Option | UPC | MPN |
---|---|---|
28.6/31.8mm | 689228725522 | ISMAD90MS |
34.9mm | 689228725546 | ISMAD90L |