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Post by bromptonaut on Nov 9, 2020 12:17:41 GMT
As mentioned in the rides thread I've got a problem with removing the cassette form my MTB. The bike itself is a Claud Butler Ravana ATX bought around 2002, bog standard lower/mid market non suspension job. "7" wheels, 3*7 gears and V brakes. Quando hubs, Shimano XC cassette. Good enough for my needs.
However there's grit grinding away in the cassette/freehub area and I need to get the cassette off. Clearly there's no provision for the usual castellated/splined tool, what appears to be the lockring has 8 evenly spaced indentations that might possibly accommodate a C Spanner, but the only one I have is small, about 6" and just about fit for its original role with old fashioned Bottom Bracket lockrings. Not enough leverage for this task.
Has anybody any similar experience/suggestions?
Thanks in anticipation.
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WDB
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Post by WDB on Nov 9, 2020 12:50:19 GMT
If YouTube can’t help and it’s not been to a shop for a while, this seems like a good opportunity to get it fettled by an expert with the proper tools.
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Post by tyrednexited on Nov 9, 2020 13:16:21 GMT
Simon,
from your description that sounds more like a freewheel than a cassette.
If so, it screws directly onto the axle, rather than having the slot-on/locking ring arrangement for a cassette.
Needs a special freewheel removal tool to engage with the indents, and this is likely to be more specific to the freewheel than the fairly generic locking ring removal tools.
(Beware, many items flagged as freewheel removal tools are actually locking ring tools - the splined arrangement makes this obvious).
Not easy things to dismantle and clean up completely, freewheels.
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Deleted
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Post by Deleted on Nov 9, 2020 14:01:56 GMT
Yay, TNE! Lovely to see you.
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WDB
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Post by WDB on Nov 9, 2020 14:10:05 GMT
Should we pretend we missed him?
I have Jelly Babies. Anyone?
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Post by bromptonaut on Nov 9, 2020 14:18:47 GMT
Simon, from your description that sounds more like a freewheel than a cassette. If so, it screws directly onto the axle, rather than having the slot-on/locking ring arrangement for a cassette. Needs a special freewheel removal tool to engage with the indents, and this is likely to be more specific to the freewheel than the fairly generic locking ring removal tools. (Beware, many items flagged as freewheel removal tools are actually locking ring tools - the splined arrangement makes this obvious). Not easy things to dismantle and clean up completely, freewheels. Thanks TnE it is indeed a freewheel, a device I'm actually entirely familiar with having first 'fettled' with one c1978. Only trouble now is loosening the bastarding thing...... I've got the removal tool in a vice and using the wheel as a lever but still not shifting it. Now tried some penetrating oil. |
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Post by Humph on Nov 9, 2020 14:31:56 GMT
If you can get the wheel into a rubble bucket or something full of hot soapy water ( or the bath if Mrs B is out...) and spin the cassette a lot, it might flush the muck out.
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WDB
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Post by WDB on Nov 9, 2020 16:32:58 GMT
...or the bath if Mrs B is out... ...preferably of the house, but certainly of the bath. Check that one carefully. |
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Post by Humph on Nov 9, 2020 16:49:46 GMT
My wife came home from work one day to find me cleaning and painting the engine block from the Westfield on the kitchen table. She was really quite surprisingly unreasonable about that. It was a very big table and there was plenty of room to eat at the other end...
😬
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Post by EspadaIII on Nov 9, 2020 16:51:16 GMT
Maybe she wants a clag remover attachment in the bath..
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WDB
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Post by WDB on Nov 9, 2020 17:41:09 GMT
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Post by Humph on Nov 9, 2020 17:48:45 GMT
I'll tell you all about it one day.
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Post by bromptonaut on Nov 15, 2020 13:16:52 GMT
Yay it is shifted. Me on one side of the wheel and Mrs B on the other.
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WDB
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Posts: 7,425
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Post by WDB on Nov 15, 2020 22:27:47 GMT
Well done. Maybe it will inspire me to have another go at unseating the Portobello's troublesome rear tyre, so I can try patching it from the inside. The insert-a-strand-of-sticky-stuff-from-outside-for-the-sealant-to-form-around method hasn't been a roaring success so far.
Problem is getting enough grip to break the bead away from the rim. I'm quite well-endowed in the thumb department, but they've just not been up to this job.
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Post by Humph on Nov 15, 2020 22:38:29 GMT
Mole grips might work.
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