Just got some New/secondary wheels, so new rotors too. But I’ve kept the same pads as they’re quite new. Anyway, same size rotors obviously but apart from being new the only other change is from SRAM to Shimano.
The wheel now sticks like hell & I’ve tried undoing the brake mount bolts to realign it. I’ve also tried pushing the pistons back in (with pads in and out) and it still catches, in that if the bike is upside down and I spin the wheel…well it doesn’t spin much.
Is this normal, will I just have to give it a proper bed in? I’ve not ridden the bike (as is) yet tbh. Or is it something else I’m missing or can do to help. It seems pretty linear so the rotors don’t seem bent to me.
Manually and slowly rotate each wheel separately feeling if force required to rotate a wheel feels constant, or “wobbles”. E.g., if the force required to rotate the wheel feels like it varies as the wheel rotates
If it feels like the force required to rotate the wheel “wobbles”, then there is a high chance that the rotator is warped. Assuming of course that the through axle is snug
It’s also worth checking the thickness on your old rotors. They wear over time and could be significantly thinner than the new ones. You’ll be constantly fighting them if you are swapping wheels with significantly different rotor wear. If you don’t have a caliper to measure them, you can pick one up for ~$20 and it’s a good thing to have in the toolbox.
Likely it’s the offset from the center of the hub. I built an awesome wheel set and the existing ‘cheaper OEM’ wheels are slightly narrow in that measurement, so I had to tweak the horizontal position of the caliper. I’ll likely leave it there as the factory wheels were kinda sketchy. There are shims that allow for better placement of the caliper on the rotor, but I have not been able to get them to work the way they seem intended. Operator error…
Oh, they also went from 6-bolt to centerlock which probably explains the offset difference…
