Hello,
I am working on putting together and adjusting a Shimano 2X GRX system. According to the Shimano documentation for the rear derailleur they are specifying a 4-6 link overlap in the big-big combination. That didn't work out... too loose on the little-little combination. Below are photos of the current state with about 3 links of overlap.
The rear derailleur link will actually fit in 2 positions. The current position is per the install instructions but it will also fit the hanger mostly vertical. So is the chain still too long? I am hesitant to keep taking links out two at a time as I don't want to end up with a chain too short to go into the big-big combination
On a separate but related question the front shifter appears to be a 4 position lever. Is the "L-trim" (bottom) position not used or is it just not adjusted properly yet? Again I followed the instructions in the documentation.
Thanks,
Steve
Little-Littler Combination
Big-Big Overlap
Big-Big Combination