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What tool to remove this freewheel?

Old 12-29-20, 05:26 PM
  #1  
Guyatwork37
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What tool to remove this freewheel?

I've not encountered a freewheel like this before. It has no spline or notches. It's from an early 2000s Gary Fisher mountain bike. Last pick isnwhatt what up against bteh freewhel, as there wasn't a cone. Not sure what tool to get or how to remove it. Thanks for any help!


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Old 12-29-20, 05:35 PM
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'02 nrs
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possibly a uniglide cassette-smallest gear unscrews to remove the cluster.need 2 chainwhips.https://www.sheldonbrown.com/k7.html

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Old 12-29-20, 05:41 PM
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Originally Posted by '02 nrs View Post
possibly a uniglide cassette-smallest gear unscrews to remove the cluster.need 2 chainwhips.https://www.sheldonbrown.com/k7.html

The center stays motionless when spinning backwards, wouldn't that indicate a freewheel versus a cassette?
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Old 12-29-20, 05:52 PM
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Any name or other markings stamped on the hub shell?
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Old 12-29-20, 07:44 PM
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Originally Posted by onsay99 View Post
Any name or other markings stamped on the hub shell?
Nothing stamped on the freewheel, which is also odd, but the hub itself is a Suntour.
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Old 12-29-20, 08:06 PM
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If Suntour very likely a microdrive cassette w/ thread on small sprocket.
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Old 12-29-20, 08:27 PM
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Originally Posted by '02 nrs View Post
If Suntour very likely a microdrive cassette w/ thread on small sprocket.
8.5.5

So if that's the case, the small sprocket can just be twisted off. Chain whip for the sprocket and something to hold rest of cassette?
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Old 12-29-20, 11:09 PM
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Originally Posted by '02 nrs View Post
possibly a uniglide cassette
That is NOT a Uniglide.
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Old 12-29-20, 11:39 PM
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I agree that it is probably a SunTour cassette hub from the late '80's/early '90's. Need to see the rest of the hub shell to be more certain.

These are tough to get spare parts for. Shimano dominated the market then and SunTour was dying.
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Old 12-29-20, 11:49 PM
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Originally Posted by icemilkcoffee View Post
That is NOT a Uniglide.
So what do you think it is then?
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Old 12-30-20, 12:37 AM
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There were some freewheels that were designed not to be removeable with a tool - they required destructive removal. Basically you use a hammer and punch to get the bearing race off of there and then everything falls apart.

https://www.parktool.com/blog/repair...uctive-removal

Should be regular English FW threads on the hub though so replacement will be easy.

Last edited by DiabloScott; 12-30-20 at 12:49 AM.
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Old 12-30-20, 06:09 AM
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Originally Posted by Guyatwork37 View Post
8.5.5

So if that's the case, the small sprocket can just be twisted off. Chain whip for the sprocket and something to hold rest of cassette?
2 chain whips
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Old 12-30-20, 07:12 AM
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Originally Posted by DiabloScott View Post
There were some freewheels that were designed not to be removeable with a tool - they required destructive removal. Basically you use a hammer and punch to get the bearing race off of there and then everything falls apart.

https://www.parktool.com/blog/repair...uctive-removal

Should be regular English FW threads on the hub though so replacement will be easy.
Yup and I'm pretty sure that's what we are looking at here.The OP has stated that the center part does not rotate with the cogs and there are clearly visible pin holes on what I am quite certain is the lock ring.
Drive that ring clockwise to remove and the floor will be littered with tiny ball bearings and the entire outer assembly will slip off. The rest can (he said optimistically) be removed with a pipe wrench.
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Old 12-30-20, 07:32 AM
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Originally Posted by Dan Burkhart View Post
Yup and I'm pretty sure that's what we are looking at here.The OP has stated that the center part does not rotate with the cogs and there are clearly visible pin holes on what I am quite certain is the lock ring.
Drive that ring clockwise to remove and the floor will be littered with tiny ball bearings and the entire outer assembly will slip off. The rest can (he said optimistically) be removed with a pipe wrench.
Yup indeed, undo the pin plate and the balls will fall out, in pure Suntour fashion. However, that does not mean it is the way to remove it - first it is important to check whether that first sprocket is threaded.
I find the biggest problem with Suntour freehubs is so many people just remove and replace them that there is too few people to explore their removal and rebuilding
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Old 12-30-20, 08:09 AM
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Originally Posted by icemilkcoffee View Post
That is NOT a Uniglide.
+1
Never seen an U-G with pin spanner holes in the bearing shield/dust cap.
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Old 12-30-20, 08:38 AM
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Originally Posted by dedhed View Post
2 chain whips
Yes. Before you try the destructive approach, use two chain whips to unscrew the first sprocket. If you have only one chain whip, you can grab a length of chain with a large Vice Grip to use as a second chain whip.
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Old 12-30-20, 08:41 AM
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Originally Posted by Geepig View Post
Yup indeed, undo the pin plate and the balls will fall out, in pure Suntour fashion. However, that does not mean it is the way to remove it - first it is important to check whether that first sprocket is threaded.
I find the biggest problem with Suntour freehubs is so many people just remove and replace them that there is too few people to explore their removal and rebuilding
Except removing just the cogs leaves the outer part of the freewheeling mechanism in place and gets you no closer to removing it.
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Old 12-30-20, 10:45 AM
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As a follow-up, apparently it just falls out when you turn it over...




tbis is my first time encounting this type of freewheel
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Old 12-30-20, 10:48 AM
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Originally Posted by Dan Burkhart View Post
Except removing just the cogs leaves the outer part of the freewheeling mechanism in place and gets you no closer to removing it.
And you were saying...
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Old 12-30-20, 11:59 AM
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Originally Posted by Guyatwork37 View Post
As a follow-up, apparently it just falls out when you turn it over...




tbis is my first time encounting this type of freewheel
Well, that is interesting. I'm sure I won't live long enough to see everything. Curious to know where the right side bearing cup is. I don't see any sign of it in any of the photos. Did you take any photos before you removed the axle?

Last edited by Dan Burkhart; 12-30-20 at 12:04 PM.
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Old 12-30-20, 12:21 PM
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Originally Posted by Dan Burkhart View Post
Well, that is interesting. I'm sure I won't live long enough to see everything. Curious to know where the right side bearing cup is. I don't see any sign of it in any of the photos. Did you take any photos before you removed the axle?
8.5.5

There was just the dust cap on the right side, no cone or anything other than a spacer and lock nut. I'm very confused by it to be honest.
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Old 12-30-20, 12:57 PM
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Originally Posted by Guyatwork37 View Post
As a follow-up, apparently it just falls out when you turn it over...

this is my first time encounting this type of freewheel
your not alone.in 20 some years I have never seen that setup.will bet the small cog still unthreads & separates from a carrier of sorts.pulling the axle may have let the whole unit free.
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Old 12-30-20, 01:34 PM
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Originally Posted by Guyatwork37 View Post
As a follow-up, apparently it just falls out when you turn it over...
Way too convenient... it'll never catch on !
P_ _ _ Tool would buy the Patent and kill it.

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Old 12-30-20, 03:26 PM
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Suntour freehub, hub and cassette HELP!!!!!!!! | Retrobike

​​​​​​Suntour Accushift Drivetrain Components at Yellow Jersey

Remove Suntour freehub body?

Suntour Microdrive cassette question | Retrobike
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Old 12-30-20, 04:31 PM
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I can't find anything in those links that explains it. A couple of them gave security warnings so I didn't go there.
However, the OP stated it was an early 2000s bike, so unless it was fitted with an older wheel somewhere along the way, I don't think we are looking at Suntour here.
Although it does seem strange that an early 2000s Gary Fisher would have a 7 speed.

Last edited by Dan Burkhart; 12-30-20 at 04:37 PM.
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