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  1. #1
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    Shimano Centerlock 20mm lock ring problem

    Hey everyone, I recently bought the shimano m776 XT 20mm hub but it did not have a locking included, I've searched for hours and all i can find are 9mm lockrings or items that will ship from other countries. Does anyone know a place where I could get my hands on a 20mm lock ring for shimano centerlocks?

  2. #2
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  4. #4
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    Well, it should come with a lockring. Take it back if you can or ask a bike shop to order you one the part number is: Y-26L 98030.

    ryball, those are not lackrings for 20mm. thru axle hubs. They may be Saint but not for XT. The XT have the wrench fitting on the outside of the ring.

    Ronnie.
    The trouble with having an open mind is that people will insist on trying to put things in it.

  5. #5
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    thanks guys, i can't take it back because i got it on ebay but i will try to order it from a local store.

  6. #6
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    also, i did find the centerlocks posted above but i don't think that either one of them will fit a 20mm thru axle

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    Sorry.

  8. #8
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    Does that take a unique rotor as well as lockring? I ask because my understanding on the Shimano centerlock rotors is that the lockring comes with the rotor...I noticed cambriabike has the xtr 15/20mm rotor with lockring. SM RT96 is the rotor part name according to Cambria...
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  9. #9
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    Quote Originally Posted by Bikinfoolferlife
    Does that take a unique rotor as well as lockring? I ask because my understanding on the Shimano centerlock rotors is that the lockring comes with the rotor...I noticed cambriabike has the xtr 15/20mm rotor with lockring. SM RT96 is the rotor part name according to Cambria...
    The first Saint center lock rotors were over sized to accomodate 20mm. thru axles. The latest XT, XTR, SLX and Saint center lock discs are all the same. The lock rings for the 20mm. axles though have the splines to tighten the ring on the outside, making the ring wider to accommodate the axle. The SM RT96 rotors were the first center lock rotors made. The 960 XTR series will have the spline on the inside. That is why you need the ring supplied with the hub as shown below and not the one that comes with the rotor.

    Ronnie.
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    The trouble with having an open mind is that people will insist on trying to put things in it.

  10. #10
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    Ronnie, thanks for the info. Glad I've got 6 bolt hubs and rotors, though...
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  11. #11
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    Quote Originally Posted by Bikinfoolferlife
    Glad I've got 6 bolt hubs and rotors, though...
    I must say that I don't agree with you. I won't buy Cris King or any of those other bling hubs because they don't have center lock discs. It may be academic but the splined interface is just better from an engineering point of view. It's more rigid and the disc is perfectly centered. I also think it is easier to work on. One nut(ring) to tighten or remove and much less risk of stripping without a torque wrench. Not that I care but they may also be lighter on the same hub.

    Ronnie.
    The trouble with having an open mind is that people will insist on trying to put things in it.

  12. #12
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    Quote Originally Posted by Ronnie
    I must say that I don't agree with you. I won't buy Cris King or any of those other bling hubs because they don't have center lock discs. It may be academic but the splined interface is just better from an engineering point of view. It's more rigid and the disc is perfectly centered. I also think it is easier to work on. One nut(ring) to tighten or remove and much less risk of stripping without a torque wrench. Not that I care but they may also be lighter on the same hub.

    Ronnie.
    Mostly I prefer the different rotor choices 6 bolt offers; I was well invested in 6 bolt before centerlock came about. 6 bolt hasn't caused me any problems from a rigidity or engineering or any other point of view. YMMV. I do prefer my King hubs, too, although I have several standard Shimano hubs too (i.e. non disc) and they're okay except for a few aspects of their serviceability.
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