2

I have a Giant Propel and the front left brake is constantly rubbing and sticking against the wheel. I've tried adjusting the bolt highlighted below, which I believe is the spring tension, but loosening or tightening this bolt seems to do nothing.

enter image description here

I've also tried adjusting the barrel adjuster but when I loosen it, the right side (which isn't rubbing) will move further out from the wheel, where as the left side (the one that's rubbing) won't move at all no matter how much I twist the barrel.

Does anyone know how to centre these brakes to prevent them rubbing?

Thanks.

Improve this question

1 Answer 1

Reset to default
3

The small screw to the northwest of your red circle in the picture is the spring tension adjuster. Tighten it down to increase the pull on the left side.

You may also want to loosen the screw on the right side if there is a large imbalance in tension between the two arms.

The bolt you tried adjusting simply holds the brake arm on. It doesn't have anything to do with the adjustment of your brake.

Improve this answer
5
  • Generally, you want to start both arms at the least tension possible and then increase tensions until you balance them.
    – Batman
    Commented Jun 12, 2015 at 0:50
  • Make sure you retighten the bolt in the red circle as it is the mounting bolt that attaches it to the fork.
    – mikes
    Commented Jun 12, 2015 at 1:38
  • Thanks guys, this did the trick. I was a bit confused because I was going by this document, and that bolt isn't present: giant-bicycles.com/_upload_in/Propel%20Brake%20Setup%20Tips.pdf
    – suskie
    Commented Jun 12, 2015 at 8:25
  • It's not labelled on the photo of the parts, but it's shown in the drawing for "5. Center the brake arms by turning the spring tension screw (align to seat stay)" on page 4.
    – armb
    Commented Jun 12, 2015 at 10:48
  • @suskie don't forget to mark this as correct answer:)
    – BSO rider
    Commented Jun 12, 2015 at 19:02

Not the answer you're looking for? Browse other questions tagged or ask your own question.