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Shimano M8010 Centerlock Lockring for 12/15/20mm Axles

Mfg PartNum:Y2A598030
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Shimano M8010 Centerlock Lockring

CenterLock rotor mounts are our preferred method for attaching rotors to our hubs. It provides even pressure across the disc rotor, so it's less likely to warp due to uneven torque and it's simply faster and easier to install and remove. The XT M8010 Centerlock Rotor Lockring is perfect to keep in the toolbox just in case you might need it on a trip. The lockring is compatible with 12, 15, and 20mm axles and Centerlock rotors and requires an external BB tool to torque the lockring to the hub.


  • Lockring for Centerlock rotors and hubs.
  • Compatible with Centerlock thru-axle hubs and rotors
  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    Mfg PartNum: Y2A598030 

    Material: Aluminum 

    Attachment Type: Centerlock 

    Compatibility: 12, 15, 20mm Centerlock hubs, rotors 

    Discipline: commuting, cross-country, cyclocross, downhill, enduro, gravel, mud/sand/snow, road cycling, time trial, trail, triathlon 

    Brake Type: Disc 

    Brake Pad Type: Disc 

    Ordered by Most Relevant First
    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Reviewed 8/2/2020
    by Roberto P.
    Windsor, CT.
    Overall Rating
    Needed for my road bike.

    I bought new wheels for my gravel bike this year. My wheels came with lock rings that use Shimano's cassette tool for installation. These didn't work with my bike's 15mm front axle since the tool didn't fit. I purchased this lock ring as it uses Shimano's bottom bracket tool for installation. This worked great with the bigger wheel axle. Installation was a breeze when paired with a torque wrench and the Shimano BB tool.

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    Reviewed 8/27/2020
    by RDP
    Competitive Racer
    Value Rating
    Overall Rating
    Works with Campagnolo centerLock disc brake rotors

    Works seamlessly with Campagnolo 140 & 160 CenterLock rotors.

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    Reviewed 4/2/2020
    by Phil
    Portland, OR
    Overall Rating
    1 of 1 customers found this review helpful.
    It works of there's enough space.

    This is exactly what you need to lock a disc rotor on your hub. You need to make sure that there's enough room between the lock ring and the fork. Often you need the thinner version for the fork.

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    Reviewed 4/30/2020
    by CycleGeek
    Daily Commuter
    Seattle, WA
    Overall Rating
    This thing is Thick!

    I wish I had read the previous review about needing space on your fork. Indeed I tried this on two separate road bikes and it does not fit either forks. It feels like this will be a super common problem as one of the bikes was a gravel bike with all kinds of clearance for a 2.1 inch tire, but close to the hub there was not enough clearance for this lockring.

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