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Ultegra Di2 FD-R8050 Front Derailleur

Mfg PartNum:IFDR8050F
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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Shifting made easy.

Delivering effortlessly smooth shifting without even the slightest bit of chain rub, Shimano's redesigned Ultegra Di2 8050 Front Derailleur benefits from many features brought down from their top-of-the-line Dura Ace lineup. Featuring a new shape that fits the wider gear pitches, Shimano brought the Synchronized Shift technology down, ensuring that you're always in the best gear placement. Two different settings change the way the derailleur behaves; with the Synchronized Shift setting, the front derailleur shifts automatically when a rear shift is made, while the Semi-Synchronized Shift setting allows the rear derailleur to automatically shift in response to front shifts. With the Auto-Trim feature, the derailleur automatically centers itself over the chain, eliminating chain rub and ensuring precise, smooth pedaling through your entire cassette's range.

The Shimano Ultegra Di2 FD-R8050 Front Derailleur is compatible with double cranksets on Braze-on frames. Clamp adaptors are sold separately.


  • Redesigned Di2 fits wider gear pitch without sacrificing shifting performance.
  • Synchronized Shift and Semi-Synchronized Shift ensure optimal gear positioning.
  • Auto-trim feature keeps derailleur centered over the chain through entire range of cassette.
  • Claimed weight: 132 grams.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

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Whats not to like?
by Brian

Exceptionally crisp shifting. Easy to adjust. It does exactly what you want electronic shifting to do. The elimination of the low limit screw means you use shift mode for small ring adjustments.

Reviewed 6/29/2018
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