Shimano GRX FD-RX810-F 2 x 11 Speed Braze-On Front Derailleur, 50t max Chainring

I'm running this front derailleur with a band-on adapter and it shifts great. It took me quite a while to get it set up properly simply due to the tight clearances that 2x11 drivetrains have. It's no inherent fault of the shifter, just something to be aware of. Once I got it set up all the way, I had to do some adjustments after a couple rides because of the cable stretching, but after that it has stayed pretty dialed. I have it attached to a Shimano 105 BR-R7070 brifter and the indexing is spot on. I've got a GRX M600 crankset (note that it won't work for 105 or Ultegra cranksets due to differences in chain-line) and it works perfectly with it. Overall, I'm very happy with this derailleur.

Genuine part, brand new as described.

As usual this shimano product is very well made. however, it is fiendishly difficult to set up and is much more complicated than any other front derailleur I have ever used in the past 40 years. Why? Who knows? It does work fine once set up, but it takes a lot of effort to figure it out. You will need to have the dealer instruction manual in front of you to do it. You will never figure it out without the manual.

Works like a champ. It was the part I needed that was causing problems with shifting my bike after replacing the front crank. Be sure and double check the compatibility of parts with Shimano’s guide. Just because it’s Shimano doesn’t mean it will work.

I've read in numerous places that this must be paired with a GRX crank and should not be mixed with other Shimano cranks like a 105. It works for me with a GRX crank and 105 levers and rear derailleur.