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Stuck lockring, any advice?

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  • October 13, 2022 at 10:11 am #32290
    Rendel Harris

    Never had this problem before (how many men have said that?), but finding it absolutely impossible to get the lockring off a Shimano HG-500 cassette, which I need to do to replace a broken spoke. It’s not that old (two months/1700 km) and has been scrupulously oiled throughout its lifetime but I just can’t budge it, even with a breaker bar added to the spanner holding the lockring tool. I know the dodge about fitting the tool into a table vice but unfortunately I don’t have access to one. Any tips gratefully received!

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  • October 17, 2022 at 3:04 pm #1006809
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    Rendel Harris
    ktache wrote:
    It might not help and do it, but this is the perfect excuse to add the Pedro’s Vise Whip and the Abbey Crombie to your tool collection.

    Cassette removal luxury.

    Ooh, like the look of that. Tempted to wait until one of Mrs H’s cassettes needs removing and tell her it’s essential…

    October 17, 2022 at 3:01 pm #1006807
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    Rendel Harris

    Many thanks for all the

    Many thanks for all the comments and advice on this, I gave in today and took it to the bike shop. The lad in there got it off in seconds with a long-handled torque wrench on the cassette remover and a chain whip with a cheat bar attached. He agreed it was very tight but couldn’t explain why, “Sometimes you just get one that goes like that.” He refused to charge me anything because I was wearing an Evil Cycling Lobby sweatshirt, bless him!

    October 15, 2022 at 1:11 pm #1006805
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    ktache

    And the decathlon thingy is a

    And the decathlon thingy is a third of the price.

    And the newer rohloff only needs a screwdriver to get the rear cog off. And then the cog can be flipped to get many more miles out of it…

    October 15, 2022 at 12:10 pm #1006803
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    hawkinspeter
    ktache wrote:
    It might not help and do it, but this is the perfect excuse to add the Pedro’s Vise Whip and the Abbey Crombie to your tool collection.

    Cassette removal luxury.

    Nice try, tempting me to buy more cycle tools, but my old chain whip has yet to let me down.

    Luckily, I’ve never had a stuck lockring despite my heavy-handedness, though I’ve made the mistake of having one not tight enough which led to a slightly wobbly cassette and then a rear wheel locking up when the lockring got jammed against the frame. I’m puzzled as to how Rendel’s lockring got so stuck.

    October 15, 2022 at 10:59 am #1006801
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    ktache

    It might not help and do it,

    It might not help and do it, but this is the perfect excuse to add the Pedro’s Vise Whip and the Abbey Crombie to your tool collection.

    Cassette removal luxury.

    October 15, 2022 at 9:34 am #1006799
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    Greenhorn

    I had the same problem and
    I had the same problem and resorted to using approx 18″ lengths of alloy tubes over the tools to increase torque. You will need assistance and probably a new cassette after due to the force needed to get it off.

    October 15, 2022 at 8:15 am #1006797
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    David9694

    If you’ve heaved a frame onto

    If you’ve heaved a frame onto a vice to tackle a stuck b/b you do have to think which way do I turn it, to effect which direction, and which direction does this cup need to go? 

    October 15, 2022 at 6:23 am #1006795
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    Rendel Harris

    Cheers, yes I shall watch out

    Cheers, yes I shall watch out, I’ve had enough burst knuckles in the past! 

    Usually I’m (too) quick to give up and get the Dremmel out, but the freehub on the Mahle system is a complex beast, with replacement basically requiring a whole new side to the motor casing, both costly and hard to source.

    October 15, 2022 at 3:20 am #1006793
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    duncanap

    Good luck. If nothing else

    Good luck. If nothing else works, and you can source a replacement free hub body then I guess as a last resort you could file/grind/ dremel the lock ring off. But rugby mates and breaker bars sound a better solution.

    please think about what happens if it does let go suddenly- don’t want to patronize you but it is easy to get caught in the moment and forget.

    October 14, 2022 at 6:47 pm #1006791
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    Rendel Harris

    You’ve got me thinking there,

    You’ve got me thinking there, the lockring is not standard Shimano issue, it’s the Orbea ebike issue which has magnets in it to feedback to the controller. It worked fine with the original cassette and its replacement but maybe a slight tolerance differential with a new cassette could be enough to lock it up? I hope not, because in my experience of Orbea spare parts a replacement lockring will cost much more than a new cassette…

    October 14, 2022 at 6:43 pm #1006789
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    Rendel Harris

    Sriracha wrote:

    Sriracha wrote:
    Somebody has to ask… … you are turning the thing the right way?

    I replied to this earlier, so sorry if it shows up twice, my reply was basically…

     I don’t need people on here to question my competence, I have a wife to do that for me and she has already asked that question! Pretty sure that unless Shimano have gone all Liz Truss on us (completely changed direction, geddit?) I’m going the right way…

    October 14, 2022 at 6:40 pm #1006787
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    Rendel Harris

    If I thought I could get that

    If I thought I could get that past Mrs H that would be exactly what I would be doing!

    October 14, 2022 at 6:16 pm #1006785
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    David9694

    I mean, the summerhouse thing

    I mean, the summerhouse thing left by the previous people had pretty much rotted, I mean seriously, they’d put carpet tiles in and that was the end for the floor, so it seemed only sensible to get rid of it and  have a 10 x 6 ‘ man shed to replace it, ordering a workbench and and adding a bolted down engineering vice that’s just what you do right, I mean it’s not like I’m smarting from being defeated by a stuck b/ b and having to go to a vice owning mate’s with it. 

    October 14, 2022 at 6:11 pm #1006765
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    David9694

    Unless Superman installed it,

    Unless Superman installed it, this situation doesn’t sound right, like increased brute force might not be the solution – it’s only a bit of fairly flimsey alu.

    Something is jammed – have you tried tickling the cogs, maybe gently with rubber screwdriver handle to see if there’s anything that might click (back) into place to release it? I’ve got two chain-whips – it might benefit from a wiggle and a waggle anti-clockwise.  

    EDIT: not Superman, but Bicycle Repair Man, of course. 

    October 14, 2022 at 4:47 pm #1006783
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    Sriracha

    Somebody has to ask…
    Somebody has to ask…

    … you are turning the thing the right way?

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