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Mavic French Track Lock Ring

$14.99ea.
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Use this Mavic French Track Lock Ring for Mavic Ellipse track wheelsets which use a French 1.37" x 24 TPI threading instead of the standard 1.29" x 24 TPI threading.

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Reviewed 6/3/2018
by Anonymous
Competitive Racer
IL
Value Rating
Overall Rating
Public service message Proprietary yes, French threaded - NO THEY ARE NOT

Description is wrong. Product is fine. It is a myth that the modern Mavic Ellipse wheel set has French threads which are in truth, extinct, production-wise. Those are English threads with a slight proprietary tolerance making the hub dislike other English rings such as Dura-Ace. Call it bad English. Now, true French track hub threads still may be found on the Mavic 520 Piste hub produced in the 80's and even more rarely, on some Campagnolo hubs designated Francaise. The French lockring threads were 33x1 metric with the stepped-up cog thread at either (French) 34.7x1 or English 1.37x24. French threads are close enough to Italian for somebody to make that mistake (once) but neither an English ring or cog will not even start on a true French hub. I have personally paid to have French lock rings custom-fabricated at much greater cost than the $13.49 charged for this thing. Trust me, French threads are something else altogether. Likely, somebody younger than 50 just assumed the Ellipse to be French because it's typical Mavic-weird. Weird yes, French NO.

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Reviewed 3/27/2015
by Rylab
Competitive Racer
San Francisco
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Overall Rating
2 of 2 customers found this review helpful.
The only lockring for adding a second cog on your Ellipse wheelset

Don't be that guy who tries to thread a standard Dura Ace or similar english lockring onto your fancy new Ellipse rear hub, you'll ruin it. It's unfortunately common. Thanks BTD for stocking these lockrings, which spin right onto the Mavic french track hubs used on the Ellipse track wheelset. I can now use both sides of my fixed-fixed rear hub safely without worry.

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