Remembering the ordering and directions of brake pads' washers?
#1
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Remembering the ordering and directions of brake pads' washers?
There are 6 washers around each brake pad on my bike (Tektro V-brakes). Each time I remove the pads for cleaning and replace them, I took great trouble in making sure to put the washers back the same way as they had been: the direction of each washer, the order of which washer comes after which, etc... So my question here is: does it matter if I mixed them up in the ordering or reversed the direction of some of them? Or maybe some day even losing 1 or 2?
#2
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domed ones go against the brake arm, the cupped ones go either under the nut, or against the pad
thicker or thinner is a choice of adjustment.
Bike shops will have extra washers left over from pad replacements as new ones come with a set.
thicker or thinner is a choice of adjustment.
Bike shops will have extra washers left over from pad replacements as new ones come with a set.
#3
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Convex ones snuggle up against the concave ones, and these must be between the pad and the arm to allow for toe-in adjustments when needed. I like a flat one between the arm and the nut/bolt.
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there are 2 pairs of convex/concave washers that act as ball joints allowing the shoe to be angled to align with the rim properly (or toe-in if you wish). As long as you have one pair on each side of the arm, the rest doesn't really matter.
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#5
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Thanks! I found this picture. Is it universal (applies to Tektro-V, too)? Is the order of everything the following, from left to right (right-hand-side brake pad):
brake pad => washer 1 (flat-concave) => washer 2 (convex-concave) => brake arm => washer 3 (concave-convex) => washer 4 (concave-flat) => washer 5 (thinnest) => nut
?
According to your replies, I just need to remember that the two pairs of convex/concave washers' concave side should be facing the brake arm.
(Unlike the picture, on my bike the washer 4 is the thickest, thicker than washer 1 in the picture.)
brake pad => washer 1 (flat-concave) => washer 2 (convex-concave) => brake arm => washer 3 (concave-convex) => washer 4 (concave-flat) => washer 5 (thinnest) => nut
?
According to your replies, I just need to remember that the two pairs of convex/concave washers' concave side should be facing the brake arm.
(Unlike the picture, on my bike the washer 4 is the thickest, thicker than washer 1 in the picture.)
Last edited by vol; 02-20-13 at 12:14 AM.
#6
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The thinner and thicker pairs of washers can be swapped round when you first set up the brake, depending how far out from the rim you want the brake arms to end up.
#7
#10
Seems odd that you seem to be doing the frequently. Can't you clean the pads by removing the wheel to access them, and replace them by sliding them out of their holders without removing the holder from the brake arms?
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Some brake systems do not have slide in/out pads, they only have one piece bolted to the calipers. Typically the lower priced groups.
#12
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I have never taken the wheel off myself. I'm only a rider and have never tried to remove and replace major parts on the bike
. I had to dissemble the brake pads after riding in rain, because the rim, brake pads, the washers and nuts all got muddy. I think brakes are very important for safety so I'd like to keep them in optimal working condition. It did take me a looong time to replace the pads in just the right positions.
. I had to dissemble the brake pads after riding in rain, because the rim, brake pads, the washers and nuts all got muddy. I think brakes are very important for safety so I'd like to keep them in optimal working condition. It did take me a looong time to replace the pads in just the right positions.
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I have never taken the wheel off myself. I'm only a rider and have never tried to remove and replace major parts on the bike
. I had to dissemble the brake pads after riding in rain, because the rim, brake pads, the washers and nuts all got muddy. I think brakes are very important for safety so I'd like to keep them in optimal working condition. It did take me a looong time to replace the pads in just the right positions.
. I had to dissemble the brake pads after riding in rain, because the rim, brake pads, the washers and nuts all got muddy. I think brakes are very important for safety so I'd like to keep them in optimal working condition. It did take me a looong time to replace the pads in just the right positions.
#14
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Thanks. I had tried paper towel before, but sometimes they tore apart. Now I get the sense that my diligent, thorough brake-pad cleaning is not very common among the professionals
. I'm just concerned about the possibility of having a braking accident due to ill maintained brakes. Maybe the brakes are not so delicate as I feared?
. I'm just concerned about the possibility of having a braking accident due to ill maintained brakes. Maybe the brakes are not so delicate as I feared?
#15
it gets a lot easier with a little practice.
every rider should, IMHO, know how to change a tire, fix a flat, clean their chain, adjust their derailleurs or in-hub-shifting, and adjust their brakes.
every rider should, IMHO, know how to change a tire, fix a flat, clean their chain, adjust their derailleurs or in-hub-shifting, and adjust their brakes.
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I'm not saying you should ignore dirt, especially because embedded grit can score rims, but don't bother taking them apart to clean mud off. Use a garden hose, or an old windex bottle and spray clean and rinse and you're good to go.
If grit does get embedded in the shoes, remove the wheel, (the brake should release open so you don't need to remove the shoes) and use an old file or rasp to clean the surface of the shoes while they're still mounted.
If you look at older bikes still on the road, you'll find that the brakes are probably the oldest original equipment (other than cables and shoes).
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Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#17
I cringe when I see the condition of many peoples brakes... frayed corroded cables, cracked/bent housings, hard ancient badly worn pads, brakes so loose they can barely reach the rims, pads aligned haphazardly with no toe-in. $10 and 5 minutes is usually all it takes to fix them, too (new cables, new pads).
#18
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I find it funny that you have never taken a wheel off, but while you aew over concerned about your brakes you don't mind taking them apart.
I would check with your LBS and get a style of pad/holder where you can simply slide new 'blocks' in. Something like this. Tehn you seldome have to worry about the washrs again.

BTW I can't stand adjusting/toeing Canti and V brakes but don't mind tackling a bottom bracket (BB) or a headset (HS)
I would check with your LBS and get a style of pad/holder where you can simply slide new 'blocks' in. Something like this. Tehn you seldome have to worry about the washrs again.

BTW I can't stand adjusting/toeing Canti and V brakes but don't mind tackling a bottom bracket (BB) or a headset (HS)
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#19
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I find it funny that you have never taken a wheel off, but while you aew over concerned about your brakes you don't mind taking them apart.
I would check with your LBS and get a style of pad/holder where you can simply slide new 'blocks' in. Something like this. Tehn you seldome have to worry about the washrs again.

BTW I can't stand adjusting/toeing Canti and V brakes but don't mind tackling a bottom bracket (BB) or a headset (HS)
I would check with your LBS and get a style of pad/holder where you can simply slide new 'blocks' in. Something like this. Tehn you seldome have to worry about the washrs again.

BTW I can't stand adjusting/toeing Canti and V brakes but don't mind tackling a bottom bracket (BB) or a headset (HS)





