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 |
Did you ever think it might be a good idea to include photos?
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Do you know who makes the hub?
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Originally Posted by cxwrench
(Post 22616108)
Did you ever think it might be a good idea to include photos?
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Originally Posted by MudPie
(Post 22616139)
Do you know who makes the hub?
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Originally Posted by CrimsonEclipse
(Post 22616261)
You ever try to NOT be passive aggressive?
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Originally Posted by jccaclimber
(Post 22616278)
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.”
A bit of an oversight on my part. Edit: the 12mm will fit, now i need a way to apply massive amounts of torque https://cimg0.ibsrv.net/gimg/bikefor...57d4b5c13f.jpg |
The focal plane isn’t exactly in the right spot, but it certainly looks like a hex. When you say the 12 mm doesn’t fit perfectly, is it loose, or does it not go in?
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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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Originally Posted by CrimsonEclipse
(Post 22616261)
You ever try to NOT be passive aggressive?
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Originally Posted by Rolla
(Post 22616420)
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.
If the hub isn’t 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. |
Originally Posted by jccaclimber
(Post 22616384)
The focal plane isn’t exactly in the right spot, but it certainly looks like a hex. When you say the 12 mm doesn’t fit perfectly, is it loose, or does it not go in?
Yeah, my photography skills aren't exactly great.
Originally Posted by Rolla
(Post 22616420)
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.
Well, at least I know that I have the right idea, I just need more gorilla torque on this thing. Thanks folks. |
Originally Posted by veganbikes
(Post 22616428)
text really doesn't have emotion.
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I cleaned up the thread. Let’s stop with the personal attacks.
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Originally Posted by CrimsonEclipse
(Post 22616525)
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. |
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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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... :thumb:
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Originally Posted by CrimsonEclipse
(Post 22616525)
I do not have access to a vice.
The "driving the bus" method can be very effective though. |
Originally Posted by sweeks
(Post 22617140)
I recommend trying to stay away from vice. :innocent:
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. |
As above, a 4’ to 6’ piece of black or galvanized pipe in the correct diameter makes a nice breaker bar.
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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. |
Originally Posted by CrimsonEclipse
(Post 22617291)
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. |
Originally Posted by CrimsonEclipse
(Post 22617291)
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. 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. |
Makes me wonder if the manufacturer felt the need to reverse thread it.
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Originally Posted by noglider
(Post 22617284)
:lol:
Americans spell it "vise," while in other countries, it's "vice." I have no idea why. |
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