Cycling Equipment · Public discussion

Converting 7-speed hub to 9-speed?

Started by Boyd Speerschne · · Last activity · 4 posts · 1,280 views

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Cycling Equipment
Published
17 April 2003
Last activity
17 April 2003
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Boyd Speerschne
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  1. Hello, Another question about my Shimano Exage 7-speed hub. Can I convert it to 9-speed simply by
    switching out the cassette body? Or is the hub body too wide? Thanks in advance,
    - Boyd S.

  2. "Boyd Speerschneider" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Hello, Another question about my Shimano Exage 7-speed hub. Can I convert it to 9-speed simply by
    switching out the cassette body? Or is the hub body too wide? Thanks in advance,
    - Boyd S.

    You may need a longer axle depending on whether you have 130mm or 126mm spacing. Peter can tell you
    exactly how much axle you need sticking out of the dropouts, but IIRC, its about 5mm per side.

    Next?

    Mike

  3. Mike S.' mikeshaw2@coxDOTnet said:

    "Boyd Speerschneider" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Hello, Another question about my Shimano Exage 7-speed hub. Can I convert it to 9-speed simply
    by switching out the cassette body? Or is the hub body too wide? Thanks in advance,
    - Boyd S.

    You may need a longer axle depending on whether you have 130mm or 126mm spacing. Peter can tell
    you exactly how much axle you need sticking out of the dropouts, but IIRC, its about 5mm per side.

    Its been a while since I had 7 speed, but ITYF that 9 speeds cassettes are about 3mm wider than 7sp,
    so cannot be fitted onto 7sp hubs,though the reverse can be done, if a spacer is put behind the
    cassette. Alan.

    --
    Change the 'minus' to 'plus' to reply by e-mail. dvatc.co.ukdvatc.co.uk - Off-road Cycling in the
    North Midlands.

  4. Quoted message said:
    Quoted message said:
    Quoted message said:

    Hello, Another question about my Shimano Exage 7-speed hub. Can I convert it to 9-speed simply
    by switching out the cassette body? Or is the hub body too wide? Thanks in advance,
    - Boyd S.

    You may need a longer axle depending on whether you have 130mm or 126mm spacing. Peter can tell
    you exactly how much axle you need sticking out


    of

    Quoted message said:
    Quoted message said:

    the dropouts, but IIRC, its about 5mm per side.

    Its been a while since I had 7 speed, but ITYF that 9 speeds cassettes are about 3mm wider than
    7sp, so cannot be fitted onto 7sp hubs,though the reverse can be done, if a spacer is put behind
    the cassette. Alan.


    I have a friend that just added a 9sp hub body to an older 6/7sp 600 hub with no problems. I don't
    think that the 3mm is going to make it not fit, just that you'll have to jigger the spacers/axle
    around to get things centered.

    Mike

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