Crank arm dust caps- favorite source?
06-08-20, 10:33 PM
#1
Insane Bicycle Mechanic
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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,
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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06-08-20, 11:35 PM
#2
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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. 😁😉
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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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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● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
06-09-20, 09:37 AM
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Originally Posted by Lascauxcaveman
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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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:
06-09-20, 12:29 PM
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Self extracting crank dust cap
Originally Posted by Jeff Wills
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.
Not original, but not the price of the originals either!
They look OK unbranded.
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06-09-20, 02:47 PM
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Originally Posted by Jeff Wills
I'm probably getting too finicky in my creeping senilitude ....
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06-09-20, 03:06 PM
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Originally Posted by Jeff Wills
That also means I should have dust caps to hide the bolts.
06-09-20, 03:36 PM
#11
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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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06-09-20, 10:19 PM
#12
Insane Bicycle Mechanic
Thread Starter
Originally Posted by KenNC
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.
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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06-10-20, 10:59 AM
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Originally Posted by Jeff Wills
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,
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,
Glenn
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.
saw too many bikes come in my shop for repair with crank bolts
rusted in place.
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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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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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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
Tim
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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
*BL SELECT* brass crank cap - BlueLug.com
Last edited by JaccoW; 06-12-20 at 09:45 AM.
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06-12-20, 05:03 AM
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08-15-22, 08:02 PM
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Depending on the bike, I usually replace them with these.
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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.....
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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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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