Brake pad alignment - newbie question
#1
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Newbie
Joined: Aug 2015
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Brake pad alignment - newbie question
Hi all! Total bike newbie here, hoping to get some advice. I recently purchased this bike, mostly for commuting to work:
Sun - SKYLAR
I have a question about the alignment of the brake pads. I noticed that on the rear brake, one of the pads is not really parallel with the rim, so the bottom corner of the pad on one side is not making contact with the rim when I brake. Also, the rear brake has been squeaking when a lot of pressure is applied - but I think that might be normal for new brakes, I'm not sure if it's related.
Here are a couple photos:


Is this okay/normal, or does it need to be adjusted so that it's angled with the whole pad making contact with the rim? If it does need to be adjusted, is this something I could do myself? I live a bit far from the LBS and if it's the kind of thing where I could just take a wrench and turn it slightly, that would be much easier.
I know this is probably a very simplistic question - but I appreciate any help you can provide. Thanks!
Sun - SKYLAR
I have a question about the alignment of the brake pads. I noticed that on the rear brake, one of the pads is not really parallel with the rim, so the bottom corner of the pad on one side is not making contact with the rim when I brake. Also, the rear brake has been squeaking when a lot of pressure is applied - but I think that might be normal for new brakes, I'm not sure if it's related.
Here are a couple photos:
Is this okay/normal, or does it need to be adjusted so that it's angled with the whole pad making contact with the rim? If it does need to be adjusted, is this something I could do myself? I live a bit far from the LBS and if it's the kind of thing where I could just take a wrench and turn it slightly, that would be much easier.
I know this is probably a very simplistic question - but I appreciate any help you can provide. Thanks!
#2
Senior Member


Joined: Feb 2012
Posts: 19,381
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From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Initial pad positioning is with the pads parallel (or maybe better said as a tangent as many pads are not curved) to the rim. If the fixing nut/bolt can't keep them so then something is wrong. pads shouldn't be able to move due to braking forces. But as many calipers have some slop in them the more realistic pad position might be based on the situation during braking when the caliper arms are flexing/bending with the forces are pulling then in the direction of the rim's travel. Andy.
#3
Senior Member
Joined: Jul 2014
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From: Bay Area
You want it to run parallel with the rim so that the entire pad is in contact when braking. The easiest way to line it up is have a third-hand tool or large clamps to hold the brakes close to the rim, then adjust the nut with your free hands.
EDIT: New brake pads can squeak for a few rides until they're broken in better. I usually take sand paper and go over them with a few swipes to help out the process.
EDIT: New brake pads can squeak for a few rides until they're broken in better. I usually take sand paper and go over them with a few swipes to help out the process.
#4
Hi citibiker1 and welcome to the forums! Yes you absolutely can adjust your own brake pads. And no the position you show in the pic is not normal - it was just put together in a hurry by the assembler and will cause uneven wear of the rubber.
#6
FLIR Kitten to 0.05C
Joined: Sep 2014
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From: Lincoln, Nebraska
Bikes: Roadie: Seven Axiom Race Ti w/Chorus 11s. CX/Adventure: Carver Gravel Grinder w/ Di2
#7
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Joined: Jul 2014
Posts: 232
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From: Bay Area
I've never used a rubber band as they're never handy and I don't think I have one thick enough to not break. I'll keep that in mind in the future though.
#8
Senior Member


Joined: Feb 2012
Posts: 19,381
Likes: 5,528
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
BITD and actually at work we use toe clip straps to hold a lever at a pre set pull. Andy.
#9
Senior Member
Joined: Apr 2015
Posts: 1,102
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From: Morris County, NJ
Bikes: 90's Bianchi Premio, Raleigh-framed fixed gear, Trek 3500, Centurion hybrid, Dunelt 3-spd, Trek 800
Hi all! Total bike newbie here, hoping to get some advice. I recently purchased this bike, mostly for commuting to work:
Sun - SKYLAR
I have a question about the alignment of the brake pads. I noticed that on the rear brake, one of the pads is not really parallel with the rim, so the bottom corner of the pad on one side is not making contact with the rim when I brake. Also, the rear brake has been squeaking when a lot of pressure is applied - but I think that might be normal for new brakes, I'm not sure if it's related.
Here are a couple photos:


Is this okay/normal, or does it need to be adjusted so that it's angled with the whole pad making contact with the rim? If it does need to be adjusted, is this something I could do myself? I live a bit far from the LBS and if it's the kind of thing where I could just take a wrench and turn it slightly, that would be much easier.
I know this is probably a very simplistic question - but I appreciate any help you can provide. Thanks!
Sun - SKYLAR
I have a question about the alignment of the brake pads. I noticed that on the rear brake, one of the pads is not really parallel with the rim, so the bottom corner of the pad on one side is not making contact with the rim when I brake. Also, the rear brake has been squeaking when a lot of pressure is applied - but I think that might be normal for new brakes, I'm not sure if it's related.
Here are a couple photos:
Is this okay/normal, or does it need to be adjusted so that it's angled with the whole pad making contact with the rim? If it does need to be adjusted, is this something I could do myself? I live a bit far from the LBS and if it's the kind of thing where I could just take a wrench and turn it slightly, that would be much easier.
I know this is probably a very simplistic question - but I appreciate any help you can provide. Thanks!

Also, pads that are not parallel to the rim (as shown in your photo) can contact the tire sidewall - not a good thing.
#10
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Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
I agree with FBOATSB, it was a sloppy assembly job by the selling dealer. Considering the type of bike this is, I was surprised to see the pads are Kool Stops.
#11
Senior Member
Joined: May 2005
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From: La La Land (We love it!)
Bikes: Gilmour road, Curtlo road; both steel (of course)
You don't need a 3rd hand tool or someone else to help you. 
Loosen the brake shoe bolts.
Take two business cards and fold them in half.
Place one doubled card under the rear of each pad, align the pads to the rim, and squeeze the brakes closed to hold them in place.
Tighten the brake shoe bolts until firm (not super tight).
Release brake lever and do final tighten on brake shoe bolts; hold in place if they want to twist with the bolt.

Loosen the brake shoe bolts.
Take two business cards and fold them in half.
Place one doubled card under the rear of each pad, align the pads to the rim, and squeeze the brakes closed to hold them in place.
Tighten the brake shoe bolts until firm (not super tight).
Release brake lever and do final tighten on brake shoe bolts; hold in place if they want to twist with the bolt.
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#14
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Joined: Aug 2015
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Great, good to know.
One other question, if anyone happens to see this - any advice for how to tighten the bolt on the brake pads an optimal amount? I thought I read somewhere that the bolt should be turned tight but not be turned too tight - just wondering how to gauge this.
One other question, if anyone happens to see this - any advice for how to tighten the bolt on the brake pads an optimal amount? I thought I read somewhere that the bolt should be turned tight but not be turned too tight - just wondering how to gauge this.
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