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Old 02-18-11, 07:07 AM   #1
Ferguzz
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Mavic 501 hubs. French threaded?

Hiya,

Does anyone know which type of thread is on an old Mavic 501 36H hub ?



Thanks
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Old 02-18-11, 08:37 AM   #2
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I don't know if there are any markings on the hub to tell you, but having a set of thread pitch gauges can be helpful in many cases, as well as a digital caliper. And these aren't expensive, like $10-$15 for the calipers and probably less for a set of the thread gauges (mine were included in a tap and die set). I use both of these tools extensively on my bikes.
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Old 02-18-11, 08:48 AM   #3
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Originally Posted by Ex Pres View Post
I don't know if there are any markings on the hub to tell you, but having a set of thread pitch gauges can be helpful in many cases, as well as a digital caliper. And these aren't expensive, like $10-$15 for the calipers and probably less for a set of the thread gauges (mine were included in a tap and die set). I use both of these tools extensively on my bikes.
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Old 02-18-11, 09:20 AM   #4
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IDK but mine takes a standard FW, not French. Check if the FW side bearing is exposed. If it is, it is a 550.

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Old 02-18-11, 09:39 AM   #5
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Were French-threaded hubs still being made when those hubs were manufactured?
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Old 02-18-11, 10:54 AM   #6
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Oh boy do those look familiar. I'm not sure if the link/thread will help you with your original post but there is a lot of good info about those hubs in it.
And by the way, +1 to what Ex Pres says. Buy a cheap set at Harbor Freight, if you have one in your area.
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Old 02-18-11, 10:58 AM   #7
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http://www.bikepro.com/products/hubs/hubs_mavic.shtml
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Old 02-18-11, 11:11 AM   #8
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Quote:
Originally Posted by Grand Bois View Post
Were French-threaded hubs still being made when those hubs were manufactured?
Literature shows the 501 came in both Italian and English threading. No French mentioned. See attached scan.
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Old 02-18-11, 11:43 AM   #9
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I have often seen Mavic hubs (500,501,550 etc) with French threads offered on ebay. Mostly see English threading though.

Cheers,
Chris
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Old 02-18-11, 01:27 PM   #10
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If you say so.
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Old 02-18-11, 03:47 PM   #11
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Quote:
Originally Posted by Ferguzz View Post
Hiya,
Does anyone know which type of thread is on an old Mavic 501 36H hub ?
Thanks
I'm not good at encyclopedic knowledge
type questions about components (reminds
me of Jeopardy), but one of the more
interesting mechanical tidbits I've picked up
in the last couple of years is that:

Quote:
Freewheels and rear hubs generally use
the same threading and diameters as
bottom brackets.
Pretty amazing when you think about it that I
was unable to figure this out by myself, but there
you have it.

This means if you have a RH threaded BB cup of known
standard, you can use it to check the threading fit of a
freewheel. (I have done this and it works.)

And in theory (I have not yet tried this, so if you do
and it screws something up, it was not me who told
you to do it) you should be able to CAREFULLY
try out the threading on your hub with the axle
removed, for fit with a known standard of BB.
On the RH threaded side, of course.

IT"S AN ALLOY HUB (soft)--It's a STEEL BB shell(hard)

Probably preferable would be to try a couple of known
standard freewheels -- but by now I think you have
the concept, which is do this carefully.

Respectfully,
Mike Larmer

Last edited by 3alarmer; 02-18-11 at 04:28 PM. Reason: Clarification
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Old 02-18-11, 04:22 PM   #12
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http://cgi.ebay.com/Hubset-MAVIC-501...item23043a5b49

I read it on the internet so it must be true

Cheers,
Chris
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Old 02-18-11, 04:59 PM   #13
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Quote:
Originally Posted by Chris W. View Post
http://cgi.ebay.com/Hubset-MAVIC-501...item23043a5b49

I read it on the internet so it must be true

Cheers,
Chris
Yup, saw that one too, I think it's been on eBay for a while(?) The "OLN" strikes a chord with me.......Someone buy it quick!! it must be as rare as chicken lips!!

Chombi
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Old 02-18-11, 06:10 PM   #14
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Well, the interestring thing about the specs I posted if that they are in English and French language, so the catalog would appear to have been intended for the French domestic market too. You'd think that they would list French thread options for the French market, if they were available. Of course, they could have dropped the option earlier.
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