105 or GRX very little difference.
"Derailleur almost in every way similar to the 105, so same quality of operation. In fact, there's no need to choose it as a replacement for the 105 if you want to switch from the 105 to the GRX crankset."

Overall rating: 4.5 / 5 from 2 reviews.
Review topics: [].
"Derailleur almost in every way similar to the 105, so same quality of operation. In fact, there's no need to choose it as a replacement for the 105 if you want to switch from the 105 to the GRX crankset."
"The finish is perfect, I'm waiting to use it, I'm missing the levers in the same range grx810 soon available (I hope)"