What tool to remove this freewheel?
12-29-20, 05:26 PM
#1
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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!
12-29-20, 05:35 PM
#2
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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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12-29-20, 05:41 PM
#3
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Originally Posted by '02 nrs
possibly a uniglide cassette-smallest gear unscrews to remove the cluster.need 2 chainwhips.https://www.sheldonbrown.com/k7.html
12-29-20, 05:52 PM
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Any name or other markings stamped on the hub shell?
12-29-20, 07:44 PM
#5
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Originally Posted by onsay99
Any name or other markings stamped on the hub shell?
12-29-20, 08:06 PM
#6
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If Suntour very likely a microdrive cassette w/ thread on small sprocket.
12-29-20, 08:27 PM
#7
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Originally Posted by '02 nrs
If Suntour very likely a microdrive cassette w/ thread on small sprocket.
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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12-29-20, 11:39 PM
#9
Insane Bicycle Mechanic
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.
These are tough to get spare parts for. Shimano dominated the market then and SunTour was dying.
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12-29-20, 11:49 PM
#10
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Originally Posted by icemilkcoffee
That is NOT a Uniglide.
12-30-20, 12:37 AM
#11
It's MY mountain
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.
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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12-30-20, 06:09 AM
#12
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Originally Posted by Guyatwork37
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?
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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12-30-20, 07:12 AM
#13
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Originally Posted by DiabloScott
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.
https://www.parktool.com/blog/repair...uctive-removal
Should be regular English FW threads on the hub though so replacement will be easy.
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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12-30-20, 07:32 AM
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Originally Posted by Dan Burkhart
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.
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.
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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12-30-20, 08:38 AM
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Originally Posted by dedhed
2 chain whips
12-30-20, 08:41 AM
#17
Senior member
Originally Posted by Geepig
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
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
12-30-20, 10:45 AM
#18
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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
tbis is my first time encounting this type of freewheel
12-30-20, 10:48 AM
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Originally Posted by Dan Burkhart
Except removing just the cogs leaves the outer part of the freewheeling mechanism in place and gets you no closer to removing it.
12-30-20, 11:59 AM
#20
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Originally Posted by Guyatwork37
As a follow-up, apparently it just falls out when you turn it over...
tbis is my first time encounting this type of freewheel
tbis is my first time encounting this type of freewheel
Last edited by Dan Burkhart; 12-30-20 at 12:04 PM.
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12-30-20, 12:21 PM
#21
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Originally Posted by Dan Burkhart
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?
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.
12-30-20, 12:57 PM
#22
royaloaker
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Originally Posted by Guyatwork37
As a follow-up, apparently it just falls out when you turn it over...
this is my first time encounting this type of freewheel
this is my first time encounting this type of freewheel
12-30-20, 01:34 PM
#23
LR÷P=HR
Originally Posted by Guyatwork37
As a follow-up, apparently it just falls out when you turn it over...
P_ _ _ Tool would buy the Patent and kill it.
Barry
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12-30-20, 04:31 PM
#25
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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.
