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Your cart is empty.Perhaps our favorite function with Di2 is shifting the front derailleur. It's light years better than any mechanical group and Shimano brings reliable Di2 technology and performance to Ultegra for precise and effortless shifting. This latest Di2 version is the R8050 and it's 11-speed compatible. The R8000 is slimmer so it plays better with bigger rear tires and sheds about 22 grams over the RD-6870. Blindfolded, we're not sure if we could tell you if a shift was executed with a Dura Ace or Ultegra Di2 derailleur.All mechanical derailleurs use spring and cable tension to move the chain from big ring to small ring and back. Shimano Di2 and this Ultegra RD-R8050 Di2 front derailleur utilize digital technology where an electronic signal is sent to a motor making the shift. Shifting is ultra-quick for launching a quick getaway before the competition even has a chance to react. Best of all, the performance is on-par with Dura Ace (it can actually be subbed in if needed) with the only real difference being the slightest of weight gains.As we stated above, front shifting is where the largest benefit of Di2 exists. Di2 front shifting is much faster than cable shifts, so you can attack over the crest of the climb where analog shifters are still fumbling with their gears. We really like that Di2 shifting effort is akin to clicking a mouse. Press the button once and the shift occurs. No more having to hold the shifter over and adjust your cadence, babying the chain up on the big ring which only gets worse as cables and housing deteriorate. Di2 shifts perfectly from day one and remains that way regardless of the conditions. Take a look at most of the Shimano sponsored cyclocross racers. They demand Di2 because it works in a terrible muddy race much worse than what a typical road bike would see. The auto-trim of the front derailleur is another feature that spoils us. The front derailleur automatically trims itself based on where the rear derailleur is, so that the chainline ...
Robert
Reviewed in the United States on July 25, 2024
This was ordered to replace a worn out FD-8050 Ultegra Di2 front derailleur. It's a known item, and just a straight re-buy. As a product, it has performed well under tough conditions.I was pleased that it shipped via courier, as USPS has underperformed in my area.I recommend a more secure and robust packaging than the uninsulated brown paper sack though. You can see the results in the attached photo.
Javier Ortega Solis
Reviewed in Mexico on November 14, 2023
Llego en la fecha programada y su caja original
Catgirl
Reviewed in the United States on August 2, 2022
Me encantó el artículo, buen precio en comparación con el Mercado. Volvería a comprarlo...
L. E. Guarapo Ramos
Reviewed in the United States on June 29, 2022
I just lost the integration from the Di2 drive train to my Hammer Head head unit because Shimano, unilaterally, revoked the license to that company to use the private network.I'll move to SRAM wireless system Rival or Force.
Wayne Double-Yew jr.
Reviewed in the United States on July 20, 2020
Schimano Di2 FD8050 works as expected. It was in soft bubble pack envelope rather than a box and had been crushed in transit. I suggested out this product in a box. It is an electronic component that is not cheap.was a miracle derailleur wasn't damaged.Seller copped an attitude.A much better seller is Competitive Cyclist who I have bought from in past. Competitive Cyclist also has good quick technical help. They were out of this part so took a chance with this seller. While I got lucky and damaged UPS envelope and crushed Shimano box didn't result in a damaged part, that was pure luck. I won't take that chance again.
fuel98rider
Reviewed in the United States on March 27, 2020
This is a great derailleur. It was easy to install and easy to set up prior to riding. The install involves making sure you properly place a metal tab to avoid damaging your frame. That part isn’t clear in the instructions, and it turns out was unnecessary on my install due to the placement of the clamp. It is super quiet and does its job unobtrusively. I keep asking myself why it took so long for me to upgrade to Di2.
kyle russell
Reviewed in the United States on March 2, 2020
Excellent technology. Shifts are powerful and consistent.
Francisco Lima
Reviewed in the United States on May 13, 2019
recomendado
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