Mavic 501 hubs. French threaded?
 

Hiya,

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

http://bikeforums.net/attachment.php...hmentid=190379

Thanks

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.

+1

IDK but mine takes a standard FW, not French. Check if the FW side bearing is exposed. If it is, it is a 550.

http://bikeforums.net/attachment.php...hmentid=190390

Were French-threaded hubs still being made when those hubs were manufactured?

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.

Literature shows the 501 came in both Italian and English threading. No French mentioned. See attached scan.

I have often seen Mavic hubs (500,501,550 etc) with French threads offered on ebay. Mostly see English threading though.

Cheers,
Chris

If you say so.

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:

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:D) 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

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!!:D:rolleyes:

Chombi

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.