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  1. WoollyMammothSocks on

    I can’t say for sure but the outer casing looks similar to the Shimano XT freehub body and that requires a 14mm allen

  2. 11mm is common on unbranded qr hubs.

    The 2 notches are for dismantling the freehub body itself

  3. Adorable_Kangaroo849 on

    As noted,11 or 12mm Allen wrenches are sometimes used on non-shimano hubs. You find whatever the biggest wrench fits from either side and that’s it. Some unscrew from the hub, some you loosen a captured nut that stays inside the hub. Everything is a right-hand thread, but depending on if it’s the captured-nut style or the screwed-into-the-hub style you have to turn the wrench differently.

  4. Grandmaster_Shu on

    Are you absolutely certain there’s no hex or “double hex” shaped hole in there? I can’t tell with all the grease on it. The hex hole will sometimes be sat further inside the freehub as well. So **really** make sure.

    https://www.reddit.com/r/bikewrench/comments/18ybopk/what_socket_is_this_in_this_shimano_freehub_body/ much like this one. If it’s a double hex, a standard allen key will fit. They just use double hex to allow for greater clearance when fitting the axle in.

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