Originally Posted by
jonathanf2
Also I'd make sure to adjust clutch tension. I loosened my 812 clutch just enough where I can keep it ON all the time, without affecting shifting.
Woah! I did not know that one can adjust the clutch tension! Shimano's website just says on/off, but (after seeing your post) I looked up how to do that in the dealer manual. Learn something new every day.
SHIMANO GRX Rear Derailleur 11-speed (34T max low sprocket) | SHIMANO BIKE-EU
SHIMANO GRX Rear Derailleur 11-speed (42T max low sprocket) | SHIMANO BIKE-EU
Interestingly, the website mentions both a clutch and a stabilizer for RD-RX810, but only a stabilizer for RD-RX812.