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Removing Shimano Dura Ace 7900 Cassette

  • 03-03-2012 1:37pm
    #1
    Diego Murphy
    Registered Users, Registered Users 2 Posts: 407 ✭✭


    Lads I just tried to remove a Shimano Dura Ace 7900 Cassette. Never done this before but used the necessary chain whip etc to remove it. The first 2 cogs the slid off nicely, but no budge at all on the remaining 8 cogs of the cassette.

    Assume i'm missing something here but haven't been able to find a solution online. Appreciate any guidance


Comments

  • #2
    Idleater
    Registered Users, Registered Users 2 Posts: 6,236 ✭✭✭Idleater


    Diego Murphy wrote: »
    Lads I just tried to remove a Shimano Dura Ace 7900 Cassette. Never done this before but used the necessary chain whip etc to remove it. The first 2 cogs the slid off nicely, but no budge at all on the remaining 8 cogs of the cassette.

    Assume i'm missing something here but haven't been able to find a solution online. Appreciate any guidance
    More pressure. The cogs possibly have gripped onto the runners a bit. It'll come straight off ie no turning .


  • #3
    blorg
    Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    As Idleater says they have probably eaten into the freehub body a bit. This happens if it is an aluminium freehub body. Jiggle it around a bit to see if you can get it loose. If this doesn't work try tapping it loose with a mallet and a screwdriver. You need to rotate the cog enough so it is freed from the gouge it has probably made in the freehub and then pull it off as normal.


  • #4
    Diego Murphy
    Registered Users, Registered Users 2 Posts: 407 ✭✭Diego Murphy


    Thanks for the advice lads.....I cleaned it as best I could without taking the whole lot of but i'll try out what you suggest next time that I try to take it off.


  • #5
    Paul Kiernan
    Registered Users, Registered Users 2 Posts: 2,216 ✭✭✭Paul Kiernan


    You haven't got a set of Planet-X wheels by any chance, have you:pac:?


  • #6
    Diego Murphy
    Registered Users, Registered Users 2 Posts: 407 ✭✭Diego Murphy


    Paul Kiernan wrote: »
    You haven't got a set of Planet-X wheels by any chance, have you:pac:?

    I do. It's Planet X Model B wheelset. Why do u ask? Sounds ominous


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  • #7
    Paul Kiernan
    Registered Users, Registered Users 2 Posts: 2,216 ✭✭✭Paul Kiernan


    Diego Murphy wrote: »
    I do. It's Planet X Model B wheelset. Why do u ask? Sounds ominous

    They have notoriously soft freehubs, I have seen them described as being made from cheese!

    Lovely wheels though, I've had a set for over two years now and they still roll really well. Bearings very well sealed and seem to last forever. If you want a light wheel I don't think anything even comes close at that sort of money. Except maybe the PX AL30, of course.


  • #8
    blorg
    Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    Paul Kiernan wrote: »
    They have notoriously soft freehubs, I have seen them described as being made from cheese!
    Any wheelset with an aluminium freehub body has this issue. I have the same issue on my Easton EA90SL wheelset, which is a high-end wheelset. I'm pretty sure I have it on another wheelset too, can't remember which at the moment.


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