Farby

I recently got a new set of wheels and after installing everything I am getting brake rub in the back. Everything looks centered when i adjusted it but after i squeeze the lever it doesn't go back to the same position to allow clearance and I end up with rub on one side.

Do i loosen and adjust the caliper where it attaches to the bike? or is it a cable adjustment to allow more clearance since the pads are new and everything is a little bit more snug? Any suggestions would be greatly appreciated as I'm not quite sure what to look for first.

Thanks all...

rm -rf

You have a new set of wheels.

Some wheels have wider rims, so you may just need to turn the cable adjuster on the brakes to open the caliper some more. This would be likely if both sides are rubbing.

Make sure your wheel is centered in the frame or fork before doing these adjustments. You might have to release the hub quick release and re-clamp the wheel correctly.

If it doesn't seem correctly centered after that, try flipping the wheel over and installing it "backwards". See if the wheel is off center to the other side. If so, the wheel needs a truing adjustment, it's not centered correctly.

Brake adjustments:
I always check out Park Tools Repair Help pages.

If you have a road bike, you probably have dual pivot brakes. See their adjustments here.

On a fairly new road bike, there's a 5mm hex head bolt attaching the brakes to the bike frame that is recessed into the frame. It can be loosened, then the brakes are moved to center the two pads. Tighten it back up. Some dual pivot brakes have a small adjusting screw to fine-tune the center adjustment.

When I think it's correct, I squeeze the lever a few times, then see if both pads hit the rim at the same time. If not, I readjust.

Farby

thanks for the info. I am only getting the rub on one side and I believe i have turned the cable adjuster as far as it will go to try and create more space.

Thanks for the links!! I'll give it another go to see if I can get it sorted out.

fietsbob

Bear in mind the brake shoe moves in an Arc. so as the pad wears,
the point of contact has moved,

so you will need to move the brake shoe on the brake,
to keep it in full contact with the rim.

jimc101

Would be useful to know what type of brakes you are using, caliper as in Dual for a road bike, or caliper as in disc; from the description of the issue, am guessing for a road bike, but could be read either way

operator

+1

operator

The barrel adjuster is not a centering mechanism for the brake. Read post #2 and learn how different brakes centering are adjusted.

Farby

sorry all, road bike. chorus brakes.

Mauriceloridans

[QUOTE=Farby;12450783] (snip) I believe i have turned the cable adjuster as far as it will go to try and create more space.

That problem is fixed by loosening the brake cable anchor bolt, letting out some more cable and retightening. best consult the above linked Park Tools site for how. I use a quick grip clamp to hold the calipers while I change the anchor point.