I have a specialized turbo electric bike and just had the shop put in a rock shox paragon front suspension. They didn't have the rotor size adapter for the disc brakes so they swapped my 180mm rotor with a 160mm rotor. They put my old fender on my new shock as well.
Riding it home I noticed that when I brake, there is a noticeable hard shift of the wheel left (to the disc brake side). It's all the more noticeable because I can see it move in relation to the fender above it. It looks like it's shifting 5-10mm.
Is this normal? Is it an optical illusion and it's the fender that's moving and not the wheel? Is the disc brake pulling the wheel over? Did installing the fender cause it? Is it caused by the replacement of the rotors?
I'm a bit at a loss to figure out if it's a problem and how to diagnose. I suppose I can undo the fender and then do some other things one step at a time but I wonder if there's an easier way to diagnose other than taking the parts off one at a time.