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Wrench question

Old 01-31-23, 12:27 PM
  #1  
louky
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Wrench question

I want to remove this freehub. My 10mm hex was too small so I ordered a 12, assuming (falsely) that this would have to be it. The 12 is too large.

Does anyone know if this requires a special tool? It is off an older, mid-level, Giant Cypress. It has a Shimano Altrus RD if that matters. Thanks!
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Old 01-31-23, 12:47 PM
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it's a 12 point inside there, no? will a 7/16 allen work?
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Old 01-31-23, 01:11 PM
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This sounds like an off brand hub, so it won't accept a Shimano freehub body. So there are very few reaosons to remove it and that might be why it takes a non-standard tool.
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Old 01-31-23, 01:14 PM
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https://www.parktool.com/en-us/produ...x-wrench-hr-11
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Old 01-31-23, 03:16 PM
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Ok, I just ordered the 11mm. I've read the advice to chuck the wrench in my vice and turn the wheel. I just want to verify that this is a normal (RH) thread.

Also, some people say the some hubs have to be turned out from the ND side. If this is the case, would it still be a RH thread? Thanks!
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Old 01-31-23, 03:35 PM
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Originally Posted by louky View Post
Ok, I just ordered the 11mm. I've read the advice to chuck the wrench in my vice and turn the wheel. I just want to verify that this is a normal (RH) thread.

Also, some people say the some hubs have to be turned out from the ND side. If this is the case, would it still be a RH thread? Thanks!
be aware that SOME freehubs are SWEDGED onto the hub.... they can not be removed. Why do you feel the need to remove the freehub?

and most "non-branded" hubs are made by a company called Formula... They love to swedge freehubs in place because it's cheaper than cutting a twelve point hex into the freehub's I.D.

clean the grease out and take a good look.

Last edited by maddog34; 01-31-23 at 03:39 PM.
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Old 01-31-23, 04:30 PM
  #7  
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Originally Posted by louky View Post
Ok,....I just want to verify that this is a normal (RH) thread.

Also, some people say the some hubs have to be turned out from the ND side. If this is the case, would it still be a RH thread? Thanks!
Yes, it is a RH thread, but that's only half the story and can be misleading. That's because the nut acts from the back to draw the freehub against the shell. So, removintg the freehub means moving the nut deeper into the shell, or turning it to the RIGHT. That might be why some people think you have to work from the opposite side, where you'd be turning to the left as expected.
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Old 02-01-23, 03:04 PM
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Originally Posted by FBinNY View Post
That might be why some people think you have to work from the opposite side, where you'd be turning to the left as expected.
This reversal can also trip one up when using a hex wrench in the end of a pedal, or in a bar-end shifter.
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Old 02-01-23, 03:27 PM
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Originally Posted by FBinNY View Post
Yes, it is a RH thread, but that's only half the story and can be misleading. That's because the nut acts from the back to draw the freehub against the shell. So, removintg the freehub means moving the nut deeper into the shell, or turning it to the RIGHT. That might be why some people think you have to work from the opposite side, where you'd be turning to the left as expected.
Very succinct explanation! I can actually visualize this the way you explained it; you probably saved me from some real drama/frustration. Thanks.
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