


Hi guys,
I recently bought a velobike Elite SS Ti Track Sprocket 12t, but the lockring on my Mavic Ellipse is too big for the chain to stay on. Velobike sells a special lockring but it won't fit on a Mavic ellipse wheel.
Do you guys know any lockring that could fit ?
I need one in this size : 1,37 x 24 TPI
(The Sprocket is too expensive for me to get a refund, 94€ + 30€ shipping cost + 39€ taxes)
by micka_dao
17 Comments
is it brass? is it for its self lubricating properties?
12 is super small. You’d be better off getting a bigger cog to solve your issue while also giving more flexibility with chainring choice.
Velobike tells me to run without lockring on the track but I’m not in a velodrome and Mavic tells me to go ask around bike shops (very helpful)
So I’m actually considering supergluing it (that can’t be a good idea right?)
Just google 12t lockring. There is plenty.
you need a french threader lockring, campagnolo makes or mavic if you find a low profile one. italian or english thread its a bit more small and doesnt fit.
most 12t cogs dont work with a lockring
I’d guess the only place to rock a 12t is the velodrome? So simply don’t use a lockring?
And why wont the special 12t lockring fit on the ellipse ?!
either get a new cog or a new wheel + the small lockring my guy.
Sell the 12t and get something else. Outside of a velodrome it simply doesn‘t make sense to run one.
You might need a half-link chain for that cog as well.
You need whats known as a stepped lockring to give the chain clearance around your little 12t. There are lots of them out in the world. But your Ellipses complicate it. I do not know nor care to look if there is such a thing as a stepped lockring to fit that threading. Good luck.
I don’t know about anybody else but it sure looks like the pitch of that chain and that sprocket do not match.
orgin 8 13t i just started rocking barely clears but it goes
Just get something bigger in front….
[You could try this guy.](https://philwood.com/products/phil-wood-track-hub-lock-ring) It’s narrower towards the cog. Can’t guarantee it would work but this is probably about as narrow a lockring gets where the chain would be.
You bought a fancy cog. You might be best to turn into jewelry or just resell it for as close as much as you paid for it to recoupe the costs.
Unless you can find a super low profile lockring.