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pedal washers - what size and cheap-ish way to get them?

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pedal washers - what size and cheap-ish way to get them?

Old 05-09-15, 09:42 PM
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soloist_huaxin
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pedal washers - what size and cheap-ish way to get them?

So I took my bike in a not-so-local bike shop to change to flat pedals in a pinch(clipless shoe broke), and the mechanic there told me that there should be pedal washers on my crank(FSA Omega compact) since there's an indent around the pedal threads on the crank arm. The question is: 1) are they necessary? 2)what size should I get? Searched ebay/amazon and found only 1 FSA branded washer, but they charge around $4 - FOR A WASHER. so 3) is there a cheaper way to get it? It's after all a washer...
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Old 05-09-15, 10:18 PM
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Hardware store, ask for a pair of washers for a 9/16 bolt. If presented with a choice of thickness, you can probably go for a thinner one.

Given the number of bikes not using them, I'd say they're NOT required. With the possible exception of on CF cranks.
OTOH, unless you're concerned about the slight increase in pedal spacing, I can't see them doing any harm either. And if used from the start, will save your cranks some scrapes and gouges.

Last edited by dabac; 05-09-15 at 10:26 PM.
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Old 05-09-15, 10:44 PM
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And the bike shop didn't offer to sell you any? We, like many shops, have pedal washers in our small misc. parts boxes on out work benches. If you're nice we usually give the one or two away.

As to are they needed? No but the crank arm will suffer less pedal hole gauging up. The pedals might tend to fit slightly straighter as their seat will be more substantial and flat. Do check how tight any new to the bike pedal is after a few rides, things can settle and bed in. Andy.
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Old 05-10-15, 07:38 AM
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Pedal washers and the fender washers sold in hardware stores aren't interchangeable. The latter are thicker, heavier, bigger around (outside diameter), and many stores don't even carry stainless steel. Specialty fittings like pedal washers cost more because they're made in such small quantities. It's not like they're brifters or something, just the price of a cup of coffee.
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Old 05-10-15, 07:46 AM
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Two for $4:
Compass Bicycles: Cranks
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Old 05-10-15, 07:48 AM
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Here ya go:



Sunlite Bicycle Pedal Washers, bag of 10
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Old 05-10-15, 08:32 AM
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Originally Posted by Andrew R Stewart View Post
And the bike shop didn't offer to sell you any? We, like many shops, have pedal washers in our small misc. parts boxes on out work benches. If you're nice we usually give the one or two away.

As to are they needed? No but the crank arm will suffer less pedal hole gauging up. The pedals might tend to fit slightly straighter as their seat will be more substantial and flat. Do check how tight any new to the bike pedal is after a few rides, things can settle and bed in. Andy.
Thanks Andy. The mechanic was rushing in(bit late for work) and was multitasking on another bike, so I guess selling pedal washer can take a backseat.
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Old 05-10-15, 10:03 AM
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Campagnolo used to warn against using washers on their alloy cranksets.
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Old 05-10-15, 10:32 AM
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Originally Posted by Andrew R Stewart View Post
And the bike shop didn't offer to sell you any? We, like many shops, have pedal washers in our small misc. parts boxes on out work benches. If you're nice we usually give the one or two away.

As to are they needed? No but the crank arm will suffer less pedal hole gauging up. The pedals might tend to fit slightly straighter as their seat will be more substantial and flat. Do check how tight any new to the bike pedal is after a few rides, things can settle and bed in. Andy.
+1 sort of.

Yes, most shops have extras and will give them away to regular customers or new customers who ask nicely in the hopes of making a friend. I agree that they're not needed on aluminum cranks, as we've lived without them for over half a century, but they do reduce marring. But they may be needed for carbon cranks which are less forgiving of the marring, or sometimes have slightly recessed pedal faces, which may cause larger pedal flanges to hang on the edge of the recess.

Where I disagree is that pedal washers won't make a pedal sit squarer (except if the flange spans a recess, which the washer fills) since the washer and the mating faces still have to be flat either way.

What I can't fathom is that a mechanic tells you that you need a part, then fails to supply or offer to sell it. IMO- that's simply ridiculous. In any case the OP doesn't need them, ---- IF --- his crank has a flat face for th pedal to sit on, and the pedal flange fits entirely within th recs and can sit squarely on that face.


As far as buying them goes, only job specific pedal washers will work, since the OD of standard commercial washers will be too large.

BTW - the crazy high price of pedal washers isn't about the part, but the logistical (handling) cost of the transaction. I suggest you skip trying to buy on line, and instead ask a local shop for a pair.
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Old 05-10-15, 11:05 AM
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Campagnolo used to warn against using washers on their alloy cranksets.
Whereas TA Required them and made them part of the design, and supplied them with their crank-sets.
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Old 05-11-15, 09:24 AM
  #11  
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If I recall correctly, (admittedly, a 50/50 chance) I used some brass water line seal washers from the hardware store plumbing dept. once and worked fine for years. I believe you can get a 9/16 I.D. and small O.D. similar to special pedal washers. I just had to snug them up after the first ride and never needed attention after that.
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Old 05-11-15, 01:07 PM
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Originally Posted by Cross Creek View Post
Pedal washers and the fender washers sold in hardware stores aren't interchangeable. The latter are thicker, heavier, bigger around (outside diameter), and many stores don't even carry stainless steel. Specialty fittings like pedal washers cost more because they're made in such small quantities. It's not like they're brifters or something, just the price of a cup of coffee.

Actually, fender washers are thin, with small hole relative to their O.D. (to reinforce the thin metal of a fender).

You are referring to standard flat washers.
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Old 05-11-15, 05:50 PM
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caveat emptor

Originally Posted by JohnDThompson View Post
Originally Posted by soloist_huaxin View Post
Thanks Andy. The mechanic was rushing in(bit late for work) and was multitasking on another bike, so I guess selling pedal washer can take a backseat.
Sunlite- Products
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Old 05-29-20, 02:53 AM
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Originally Posted by Reynolds View Post
Campagnolo used to warn against using washers on their alloy cranksets.
That was a repair-deniability bit.

If it broke and you used something that wasn't theirs, not their fault.
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Old 05-29-20, 07:25 AM
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Originally Posted by Reynolds View Post
Campagnolo used to warn against using washers on their alloy cranksets.
Originally Posted by oneclick View Post
That was a repair-deniability bit.

If it broke and you used something that wasn't theirs, not their fault.
Campagnolo still warns against using pedal washers:


Given their history of pedal inserts breaking free of the chainset arm I'd think you would want to heed their recommendations
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Old 05-29-20, 03:23 PM
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3alarmer
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Originally Posted by RGMN View Post

Given their history of pedal inserts breaking free of the chainset arm I'd think you would want to heed their recommendations
...sorry, but I'm not quite understanding what you're saying here ? Are you referencing CF cranks with a metal insert for the pedal threading ?
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Old 05-29-20, 08:41 PM
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Originally Posted by 3alarmer View Post
...sorry, but I'm not quite understanding what you're saying here ? Are you referencing CF cranks with a metal insert for the pedal threading ?
The threaded pedal inserts in some of Campags early CF crank arms would break loose, typically sometime just after the warranty ran out. Campagnolo was pretty unresponsive on fixing or replacing them. I still have my Record chainset that driveside insert broke loose. With a good pedal permanently attached.
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Old 05-30-20, 12:13 AM
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Originally Posted by RGMN View Post
The threaded pedal inserts in some of Campags early CF crank arms would break loose, typically sometime just after the warranty ran out. Campagnolo was pretty unresponsive on fixing or replacing them. I still have my Record chainset that driveside insert broke loose. With a good pedal permanently attached.

...OK, thanks. That's what I thought you meant. That's tech that is waaaay to new for me.
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Old 05-30-20, 09:56 AM
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an example of the industry not fixing a problem. https://www.sheldonbrown.com/brandt/...ng-cranks.html
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Old 05-31-20, 10:05 AM
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Sugino cranks have smaller than 20mm outer diameter counter bore on the pedal threads so standard pedal washers don't fit and would get stuck in the hole. Some manufacturers of pedal washers list dimensions and I think there was one that had 19.8mm that may have worked but I don't remember which one. Instead I bought a pack of 5 pieces of din7603a pipe fitting washers for $2 at the hardware store. They're supposed to be 14.2x19.9x1.5mm but the ones I got were around 14.2x19.7x1.2mm so it fit exactly in the hole. It was copper so it got squished and formed an indentation from the wrench flats of the pedal spindle. The excess material pushed out to the sides but since it's soft, I can still pull it out of the hole without it getting stuck. I'm not sure if using soft copper will cause the pedals to get loose in the future but mine haven't yet for 2 years.

My mks pedal spindle had a 21mm outer diameter which I did not initially realise so when I installed them into the 19.8mm counter bore hole of the crank, it gouged a lot of material. The pedal washers that came with the mks were too large in diameter, and it was only 1mm think, while the hole on the left side was 2mm deep while the right side was 1mm deep. So I stacked 2 of the din7603a washers on each side to get 2.4mm of thickness.

Last edited by tomtomtom123; 05-31-20 at 10:13 AM.
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