Removing Freehub
10-13-19, 02:44 PM
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Removing Freehub
Just want to be sure an Allen wrench will remove this freehub. The wrench size is either 11mm or 12mm. Does this removal only require an Allen wrench?
The forum wouldn't let me post a picture because I am a new member. Is there anyway around this?
Photo of my freehub on an AlexRim DM25
The forum wouldn't let me post a picture because I am a new member. Is there anyway around this?
Photo of my freehub on an AlexRim DM25
10-13-19, 02:48 PM
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it would be nice to know if it was a shimano or campy, what model, etc.
yes it's a 10mm allen on the shimano freehub I think.
I know of no alternative tool
Mark Petry
Bainbridge Island, WA USA
yes it's a 10mm allen on the shimano freehub I think.
I know of no alternative tool
Mark Petry
Bainbridge Island, WA USA
10-13-19, 03:00 PM
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It is on an AlexRim DM25 with a shimano off road stack. I don't see any identification on the freehub but I do have a 10mm allen and it is too small. It is either an 11mm or 12mm.
10-13-19, 03:39 PM
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Many freehubs that aren't Shimano simply pull off, sometimes you need to first release a locknut or circlip. Have you checked for that?
10-13-19, 03:42 PM
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10-13-19, 04:46 PM
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I was given 2 of the bikes and I dont have any info on them except for what's on the bikes.
They are Karakoram GT with the Suntour 012 series front fork. I believe they were $500 bikes or about. I am building one good one out of the two for my son and need to swap the freehub from the junk rear rim to the good rim which has a bad freehub.
A 7/16 hex head bolt fits perfect into the freehub. The bearing cup in the hub has 2 notches 180 degrees apart and looks like it accepts a tool but I dony know if that has anything to do with removing the free hub. After looking at it again it looks like the right Allen wrench will remove it. Guess I will need to go out and buy one.
They are Karakoram GT with the Suntour 012 series front fork. I believe they were $500 bikes or about. I am building one good one out of the two for my son and need to swap the freehub from the junk rear rim to the good rim which has a bad freehub.
A 7/16 hex head bolt fits perfect into the freehub. The bearing cup in the hub has 2 notches 180 degrees apart and looks like it accepts a tool but I dony know if that has anything to do with removing the free hub. After looking at it again it looks like the right Allen wrench will remove it. Guess I will need to go out and buy one.
10-13-19, 07:54 PM
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10-13-19, 09:53 PM
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Thanks for the tip. I would not want to take the good one apart but may get a tool to dis-assemble the bad one which spins freely in both directions.
10-14-19, 04:01 AM
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Some hubs need the Allen key inserting from the other side just to confuse the issue.
10-14-19, 06:11 PM
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So I went to Home Depot, Ace Hardware, Lowes, Autozone, Napa and could not find a single 11mm or 7/16 Allen wrench. Thought maybe I took a wrong turn somewhere and was on a different planet. Is it true I will need to order one online? Maybe this was a setup so that I would attain my 10th post and be able to post pictures. Idk. Wasted half a day.
10-15-19, 10:27 AM
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I was trying to remove a freehub the other day, it is an old Shimano Dura Ace. Many people seem to feel like Dura Ace is a test bed or forgotten line of elite products that Shimano produced. This is because all the maintenance needs to be accomplished with rare or obsolete tools. In my case, there is an octagonal pattern in side the freehub, and to remove it requires a rare tool that is available on eBay for about $75.00. Alternative methods were discussed in other threads about servicing the freehub while still on the bike. I did this, and have had great results.
My free hub started off spinning in both directions (like yours), but with the application of a ton of WD-40, I was able to get it to function properly. I am still not happy with the sound of it, so I have it soaking in some Motor Oil. I will pull it from the motor oil tomorrow, and hopefully it will be good as new.
My free hub started off spinning in both directions (like yours), but with the application of a ton of WD-40, I was able to get it to function properly. I am still not happy with the sound of it, so I have it soaking in some Motor Oil. I will pull it from the motor oil tomorrow, and hopefully it will be good as new.
10-15-19, 12:47 PM
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I guess I could soak the crap outa the existing one. It would be nice to be able to get it off. One thing I tried, that didn't work, was I took a 4-1/2in 1/4in bolt with a long shank. The hex head is 7/16. I put it in from the other side and cranked two 1/4 in nuts onto the bolt up to the shank and kept turning but it finally just twisted the bolt in half. The other item at the supply houses I looked for was an old style turn buckle with a 7/16 exterior. They apparently don't make those old style ones anymore but if I could find one, it would probably work. I should have an Allen wrench by weeks end. Hopefully that will end the drama and after all these posts, I may be allowed to upload pictures! Yipee!!!!
