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Crank arm dust caps- favorite source?

Old 06-08-20, 10:33 PM
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Crank arm dust caps- favorite source?

I'm probably getting too finicky in my creeping senilitude (is that a word?) but I like to replace the 8mm Allen screws that retain newer square-taper cranks with older-style 14mm bolts. That also means I should have dust caps to hide the bolts.

Does anyone have a favorite source for crank arm dust caps? I alternate between liking those with 2 holes for removal (like Dura-Ace 7400) and those with a hole for a 5mm Allen fitting.


I.E.:

vs,
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Old 06-08-20, 11:35 PM
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Funny, I just recently aquired 2 sets of the 5 mm allen wrench ones. One set came with my current bike, with early Shimano triple cranks, and the others came with a Sakae FX triple crank, on a parts bike. They’re both much sturdier than the aluminum foil type, that don’t survive removal very well. 😁😉
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Old 06-09-20, 01:41 AM
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Favorite source? The little drawer right next to my work bench. Lots of them in there. Let me know what you need and I will look. I have metal and, of course, plastic.
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Old 06-09-20, 01:45 AM
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Personally, I'm a fan of the "Sugino Slot." Cheap and plentiful all over the internet in several colors. And there's just something endearing about a dustcap you can unscrew with your thumbnail.


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Old 06-09-20, 09:37 AM
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Originally Posted by Lascauxcaveman View Post
Personally, I'm a fan of the "Sugino Slot." Cheap and plentiful all over the internet in several colors. And there's just something endearing about a dustcap you can unscrew with your thumbnail.


Or a dime.
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Old 06-09-20, 11:27 AM
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I like the old Shimano 5mm allen caps. They were nicely chromed and unmarked, so they work with anything. Top left in the picture:
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Old 06-09-20, 12:29 PM
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Self extracting crank dust cap

Originally Posted by Jeff Wills View Post
Does anyone have a favorite source for crank arm dust caps? I alternate between liking those with 2 holes for removal (like Dura-Ace 7400) and those with a hole for a 5mm Allen fitting.
I like these and they fit my Campag Record cranks. Price on the box is a year old.
Not original, but not the price of the originals either!
They look OK unbranded.

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Old 06-09-20, 01:54 PM
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Alright then, if everyone’s gonna post pics, here are the Sakaes. 😎
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Old 06-09-20, 02:47 PM
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Originally Posted by Jeff Wills View Post
I'm probably getting too finicky in my creeping senilitude ....

...yes, I suspect so. I have gone in exactly the opposite direction, and I'm not looking back. Something might be gaining on me.
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Old 06-09-20, 03:06 PM
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Originally Posted by Jeff Wills View Post
That also means I should have dust caps to hide the bolts.
Depends on the bike and crank. I always leave 'em off without the right cap. They don't suffer for it, and usually look a little more badass.
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Old 06-09-20, 03:36 PM
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I like Bespokechainrings on ebay, he has Stronglight, TA, and standard dust caps: https://www.ebay.com/usr/bespokechai...p2047675.l2559 Sometimes eBay goofs up the shipping price on him, so if it seems high be sure to ask.
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Old 06-09-20, 10:19 PM
  #12  
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Originally Posted by KenNC View Post
I like Bespokechainrings on ebay, he has Stronglight, TA, and standard dust caps: https://www.ebay.com/usr/bespokechai...p2047675.l2559 Sometimes eBay goofs up the shipping price on him, so if it seems high be sure to ask.
Pretty nice but they're as pricey as NOS Dura-Ace!

If it weren't for the Corona virus I'd be visiting the local bike co-ops and fishing through the boxes of used parts. I miss doing that.
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Old 06-10-20, 10:59 AM
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Originally Posted by Jeff Wills View Post
I'm probably getting too finicky in my creeping senilitude (is that a word?) but I like to replace the 8mm Allen screws that retain newer square-taper cranks with older-style 14mm bolts. That also means I should have dust caps to hide the bolts.

Does anyone have a favorite source for crank arm dust caps? I alternate between liking those with 2 holes for removal (like Dura-Ace 7400) and those with a hole for a 5mm Allen fitting.


I.E.:

vs,
I always remove good condition Dust caps and put the Allen Head crank bolts on bikes I flip and now have them when I build a bike for myself. The Shop I work at had a bunch of Nos caps that I also raided, Got Sugino caps in red, black and gray.

Glenn
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Old 06-10-20, 12:55 PM
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I don't like em. I don't use em. they let water in and don't let it out
saw too many bikes come in my shop for repair with crank bolts
rusted in place.
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Old 06-10-20, 04:15 PM
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I also have a small stash of them that I run across every couple years. I always put them in a safe place, and then don't see them again for a good long while.
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Old 06-11-20, 05:50 AM
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Dust caps are one of those things- you don't notice them until you're looking for them. I like the plain ones unless you have the ones that pretty clearly match- but I think it's funny when you see dust caps that came with crank sets- that don't appear to have come with crank sets. Like the black Suginos...
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Old 06-11-20, 06:20 AM
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I like these, from that woman in Poland. Sorry pics not that great, bad lighting in my basement.
Tim




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Old 06-12-20, 02:09 AM
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I like these brass self-extracting bolt caps from BlueLug Japan. Though you need to order the self-extracting bolts seperately.
*BL SELECT* brass crank cap - BlueLug.com



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Old 06-12-20, 05:03 AM
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Mismatch but still Stronglight. Recently obtained the right ones, 38 years later, from generous Duke7777 .
LC_Crank, on Flickr
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Old 08-15-22, 06:06 PM
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perfect!! thank you!
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Old 08-15-22, 06:25 PM
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Two-hole Shimano style. eBay.
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Old 08-15-22, 08:02 PM
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Depending on the bike, I usually replace them with these.




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Old 08-15-22, 11:12 PM
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In the 80's, my brother and I threw out a lot of crank dust caps as part of gram strategy for our bikes that we continuously modded up. I remember having a box full stuff removed from our bikes when we got them, like wheel, frame and pedal reflectors, Chainring protectors,, dork disks, cheap OEM saddles, turkey leg brake levers, even tire valve caps and...... crsnkset bolt dust covers.......
I wonder what happened to that box? I think my older brother might have thrown it out already as I think I left it in his attic in WI when I moved to CA in 1990.....
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Old 08-16-22, 03:30 AM
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TA hex ones are rubbish, the metal is only a bit stronger than cheese and if they get stuck (which they do) they are a right b. to get out without damage.
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