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 Post subject: Screw-on cassettes.
PostPosted: Mon Oct 26, 2009 11:32 am 
Retro Guru

Joined: Wed May 27, 2009 10:41 am
Posts: 638
Its the thread a standard size? I've got a mavic hub with a sachs cassette, will that have the same thread pitch as a shimano cassette?


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PostPosted: Mon Oct 26, 2009 12:30 pm 
Moderator /Lincs, E & S Yorks Deputy AEC
Moderator /Lincs, E & S Yorks Deputy AEC
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Joined: Mon Nov 26, 2007 6:16 pm
Posts: 4144
Location: RetroModding™ since 1988
I'm pretty sure they will have the same thread pitch


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PostPosted: Mon Oct 26, 2009 4:03 pm 
Old School Grand Master
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Joined: Wed Feb 20, 2008 12:21 pm
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Location: Lost in Translation
If it's threaded, it's not a cassette, strictly speaking, but a freewheel.

There are three national variations of freewheel thread found on older bikes (early eighties or before, though there are a few later exceptions): British, French, and Italian. British (BSC) is the only one of the three still made. A BSC freewheel will fit an Italian hub. The other combinations are close, but incompatible.

There's a slim chance your Mavic hub might have a French thread, but most that found their way to British shores were BSC. Is there a date code on the bearing cover? A 1990s hub is pretty certain to be BSC. A 1980s model might be French, but the odds are that it's also BSC.


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