I’ve been thinking about getting a 4iiii 105 left side power meter for my GRX crank, but because the GRX crankset has a wider q factor, the left side pedal will be closer than the right. I’m currently running Shimano SPD 540 pedals. Do you think this would present an issue (knee pain maybe?)
Would it make sense to shim the crank out a bit, and if so how far can I do that safely? Is there a way to move the pedals outboard a bit too?
I currently have a Stages GRX left side PM but have been having issues and working with Stages for a resolution. I’m just thinking ahead to plan B.