Just installed my cog and lockring on my wheel. Is it normal that the lockring doesn't thread all the way on? What I mean is, the cog is flush against the hub, and the lockring is flush against the cog, but the lockring isn't threaded as far on as it could go if the cog wasn't there. Does my explanation make sense? Basically, all the threads on the hub are used, but I can see some extra threads on the lockring itself, as if it were thicker than it needs to be.

Edit: added some photos. First one shows that the cog is flush against the hub and the lockring is flush against the cog. Second shows how the lockring is still hanging off a bit.

Nothing to worry about as long as everything is threaded on all the way and torqued down. You just have some "bonus" threads.

I have the exact same issue on one of my wheels. Not enough thread engagement, it will strip out- especially if you skid or hop the rear wheel

The hub has two diameters of threading, and the wider threaded area is too short.
I flipped the lockring over to get more thread engagement but it's certainly not ideal and it is still the same problem

any ideas would be helpful, nice post and pics- thanks

How would flipping over the lockring give you more thread engagement? Every lockring I've ever seen in my life has been threaded all the way through.

This is my first FG, so I have nothing to compare it to. Is it the lockring that's too thick, or the cog? I wasn't aware there were differences in thicknesses.

Just looks like a thick lock ring. If all the threads are engaged and up against your properly tightened cog, I don't think you have any anything to worry about. What lock ring is that?

You just have a really wide lockring. The DA lockring is like half-as thick but engages the same amount of threads. It's fine.

+1

It's an all-city cog and lockring.

https://allcitycycles.com/products/standard_black_cog

https://allcitycycles.com/products/lockring

As long as it's the lockring that's extra thick then I'm not worried. I just wasn't sure if it was the cog that was too thick and was keeping the lockring from tightening down on all the threads.

Nothing is "too" anything. Just ride the stupid bike.

Oh snap.

I'd gladly go ride the bike, if it had a seat, a front brake, and a crankset. It'll be a month before it's done.

One last question. Is the lockring on backwards? I installed them both with the writing on the outside, but just realized that it's the narrower side that's pressing against the cog.

Everything is installed correctly.

Thats convenient, that all-city lock ring makes it so you could get the lock ring tool on without having to pop the chain off.

I had this happen on a Soma hub with a Milwaukee cog and lockring. I could only get 1.5-2 rotations on the lockring. I replaced it with a Surly lockring -- the Surly has a lip that reaches inside the cog to grab more hub threads. With that lockring I think I got about 4 rotations.

I think I see two threads hanging off of the hub in your picture. That's probably fine. I'd want more than half, maybe two-thirds, of the ~6 threads on a lockring engaged with the hub.

Either way works, though you could try flipping it to see if more threads engage. You need the narrower side in to clear the chain when using a 12t cog.

Take a look at his All-City links. There's no way to engage more threads.

Do hubs come in different sizes, as in some have more threads than others? I really can't see how it would be possible for either the cog or lockring to be any tighter, but I'm confused why they'd make the lockring that thick.

As mentioned above, a lockring that thick would allow you to use the lockring on a super small cog(like a 12T) and theoretically using a lock ring tool without removing the chain.

I bet you can't wait to bust out those sweet elephant trunk skidz... if only you had a rideable bicicleta : \

I emailed all-city, and they recommended that I not use their products on my hub. They said that they design their cog and locking to be used with their hubs. I'm leaning towards getting a surly cog and locking instead. Anyone have any other recommendations?

Purrfectionist.

That is ridiculous. You have a Formula hub, which has the exact same cog/lockring thread widths as All-City hubs.

Don't.

I agree with the consensus. Use the lock ring as is. It's twice as thick as a "normal" lock ring, meaning at half engagement you're still equal to a "normal" lock ring.

OR... or.. get out a grinder and bring that thing down a bit. Watch the threads!