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Freehub Removal troubles

Old 08-19-22, 02:24 PM
  #1  
CrimsonEclipse
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Freehub Removal troubles

Freehub removal troubles

I an trying to remove a freehub from a 20" wheel.
It's from a 2015-7 Dahon Mariner so it's a 7 speed.

I purchased a 11mm and 12mm alen keys and neither fit perfectly.

But the big problem is it won't break loose.
Yes I'm turning counter clockwise...
But I'm using so much torque that I've already bent 2 cheater bars.

The hex portion of the free hub is about 3/4-to an inch deep instead of at the surface.

I see no other grip or tool type to remove this freehub
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Old 08-19-22, 02:45 PM
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Did you ever think it might be a good idea to include photos?
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Old 08-19-22, 03:15 PM
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Do you know who makes the hub?
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Old 08-19-22, 04:52 PM
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Originally Posted by cxwrench View Post
Did you ever think it might be a good idea to include photos?
You ever try to NOT be passive aggressive?
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Old 08-19-22, 04:52 PM
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Originally Posted by MudPie View Post
Do you know who makes the hub?
Honestly not sure, there is no numbers or writing on the hub
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Old 08-19-22, 05:13 PM
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Originally Posted by CrimsonEclipse View Post
You ever try to NOT be passive aggressive?
Iíll be more direct, that was an apparently overly subtle way of saying ďMost of us donít know what the inside of your less than common part looks like. Why donít you upload a nice clear picture for us? Often when people do that we very quickly spot the problem, and are able to suggest a solution.Ē
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Old 08-19-22, 06:59 PM
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Originally Posted by jccaclimber View Post
I’ll be more direct, that was an apparently overly subtle way of saying “Most of us don’t know what the inside of your less than common part looks like. Why don’t you upload a nice clear picture for us? Often when people do that we very quickly spot the problem, and are able to suggest a solution.”
No problem!
A bit of an oversight on my part.

Edit: the 12mm will fit, now i need a way to apply massive amounts of torque



Last edited by CrimsonEclipse; 08-19-22 at 07:17 PM.
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Old 08-19-22, 07:12 PM
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The focal plane isnít exactly in the right spot, but it certainly looks like a hex. When you say the 12 mm doesnít fit perfectly, is it loose, or does it not go in?
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Old 08-19-22, 08:01 PM
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First I would make extra sure that 12mm is the right size. Then try securing the correct allen wrench in a bench vise and lowering the freehub onto it. Grab the wheel in both hands and "drive the bus," turning the wheel counterclockwise. This works well with 700c wheels; hopefully the 20" wheel will give you enough leverage.
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Old 08-19-22, 08:09 PM
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Originally Posted by CrimsonEclipse View Post
You ever try to NOT be passive aggressive?
Not posting information is never helpful, if you need pictures you should post pictures if you need to tell us what you have tell us what you have. We see this too often with new members but with old members it just doesn't make sense. Sure sometimes cxwrench might seem a little brash but it is a forum on the internet you gotta have enough skin to handle people being honest even if it feels more on the negative side text really doesn't have emotion.
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Old 08-19-22, 09:00 PM
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Originally Posted by Rolla View Post
First I would make extra sure that 12mm is the right size. Then try securing the correct allen wrench in a bench vise and lowering the freehub onto it. Grab the wheel in both hands and "drive the bus," turning the wheel counterclockwise. This works well with 700c wheels; hopefully the 20" wheel will give you enough leverage.
^^^This. This is the only way I have removed freehubs since, I dunno, forever. With the Allen wrench in a vise and the free hub pointing up, turn the wheel toward you to tighten, away from you to loosen (opposite if the freehub is pointing down ó I prefer the freehub pointing up as itís easier to see the freehub coming loose).

If the hub isnít on a wheel, get hold of a trashed rim and a half dozen spokes. Lace the hub onto the junk rim and proceed as above.
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Old 08-19-22, 10:27 PM
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Originally Posted by jccaclimber View Post
The focal plane isnít exactly in the right spot, but it certainly looks like a hex. When you say the 12 mm doesnít fit perfectly, is it loose, or does it not go in?
I finally did get a 12mm to fit.
Yeah, my photography skills aren't exactly great.

Originally Posted by Rolla View Post
First I would make extra sure that 12mm is the right size. Then try securing the correct allen wrench in a bench vise and lowering the freehub onto it. Grab the wheel in both hands and "drive the bus," turning the wheel counterclockwise. This works well with 700c wheels; hopefully the 20" wheel will give you enough leverage.
That's the delay right now. I do not have access to a vice. I may have a friend hold the wheel while I get a large breaker bar.

Well, at least I know that I have the right idea, I just need more gorilla torque on this thing.

Thanks folks.
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Old 08-20-22, 08:56 AM
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Originally Posted by veganbikes View Post
text really doesn't have emotion.
Maybe not, but with a modicum of effort, text can convey emotion exceedingly well. Whether spoken or written, that's one of the principal functions of language.
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Old 08-20-22, 10:57 AM
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I cleaned up the thread. Let’s stop with the personal attacks.
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Old 08-20-22, 02:16 PM
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Originally Posted by CrimsonEclipse View Post
I finally did get a 12mm to fit.
Yeah, my photography skills aren't exactly great.



That's the delay right now. I do not have access to a vice. I may have a friend hold the wheel while I get a large breaker bar.

Well, at least I know that I have the right idea, I just need more gorilla torque on this thing.

Thanks folks.
A length of 3/4" pipe will fit over a 12mm allen.
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Old 08-20-22, 02:43 PM
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In lieu of a vice you can put the wheel against a wall, standing, and use the wrench/pipe in the direction that would roll the wheel into the wall. I do this all the time if someone is using the vice and I need to undo a lockring.
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Old 08-20-22, 02:48 PM
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If you bought a cheap bench vise and mounted it to a long board, you could sit on one end of the board to twist off the freehub body...
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Old 08-20-22, 03:18 PM
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Originally Posted by CrimsonEclipse View Post
I do not have access to a vice.
I recommend trying to stay away from vice.
The "driving the bus" method can be very effective though.
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Old 08-20-22, 06:16 PM
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Originally Posted by sweeks View Post
I recommend trying to stay away from vice.
The "driving the bus" method can be very effective though.

Americans spell it "vise," while in other countries, it's "vice." I have no idea why.
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Old 08-20-22, 06:22 PM
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As above, a 4í to 6í piece of black or galvanized pipe in the correct diameter makes a nice breaker bar.
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Old 08-20-22, 06:22 PM
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Alright, an update.
I took the damn thing to a bike shop, put a 12mm into a vice, and tried to turn the wheel.
First horizontally, then vertically, with two fully grown men , one of them (me) channeling my extended annoyance, at the same time while the 12mm allen key was flexing the better part of 45 degrees.

Any more pressure and the allen key might have failed spectacularly and dangerously.

So, as much as I would like to give up, I'm not.
One of my friends likely has a 12mm socket and an impact wrench.
After that, I'm thinking blowtorch.
After that, thermite.

Maybe a tactical nuclear strike.
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Old 08-20-22, 11:24 PM
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Originally Posted by CrimsonEclipse View Post
Alright, an update.
.....snip
So, as much as I would like to give up, I'm not.
One of my friends likely has a 12mm socket and an impact wrench.
After that, I'm thinking blowtorch.
After that, thermite.

Maybe a tactical nuclear strike.
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Old 08-20-22, 11:32 PM
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Originally Posted by CrimsonEclipse View Post
Alright, an update.
I took the damn thing to a bike shop, put a 12mm into a vice, and tried to turn the wheel.
First horizontally, then vertically, with two fully grown men , one of them (me) channeling my extended annoyance, at the same time while the 12mm allen key was flexing the better part of 45 degrees.

Any more pressure and the allen key might have failed spectacularly and dangerously.

So, as much as I would like to give up, I'm not.
One of my friends likely has a 12mm socket and an impact wrench.
After that, I'm thinking blowtorch.
After that, thermite.

Maybe a tactical nuclear strike.
A socket with 12mm hex bit is the way to go here.
Assuming you get it off, be sure to apply anti-seize or grease to the threads. The freehub fixing bolt need not be installed with gorilla strength.
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Old 08-21-22, 01:01 AM
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Makes me wonder if the manufacturer felt the need to reverse thread it.
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Old 08-21-22, 10:04 AM
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Originally Posted by noglider View Post

Americans spell it "vise," while in other countries, it's "vice." I have no idea why.
Yes, my vise is in the workshop and my vice is in the liquor cabinet!
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