Find answers, ask questions, and connect with our
community around the world.

Forums Forums The Workshop old school new cool

  • old school new cool

     Steve Kish updated 11 years, 4 months ago 4 Members · 10 Posts
  • suparich

    Member
    16 February 2009 at 12:14 pm

    Hi, Please help.

    I need to upgrade my old Cannondale mountain bike and I’m at a bit of a loss as to which new parts still fit.

    The frame 1989.

    Kitted out with 1990 Shimano Deore XT.

    I need to replace the worn bottom bracket, chain set, rear cassette and derailleur.

    questions…

    1. I’m assuming that I have to replace the cassette with a seven speed block; my XT hubs most probably can’t take nine speed?

    2. Bottom bracket – Hollowtech. Do I need new tools to fit this or should I get a shop to do it? Any axle issues?

    3. Which chain set can I use? XT looks like it’s been upgraded out of my old bike’s league.

    thanks.

    r

  • tomlevell

    Member
    16 February 2009 at 12:53 pm

    The frame 1989.

    Blimey and it hasn’t snapped yet!

    1. I’m assuming that I have to replace the cassette with a seven speed block; my XT hubs most probably can’t take nine speed?

    IIRC the change to 8 speed (and then 9 speed) meant new hubs so you will have to get a 7 speed hyperglide cassette.

    2. Bottom bracket – Hollowtech. Do I need new tools to fit this or should I get a shop to do it? Any axle issues?

    You should be able to change the BB itself. Easiest thing is to get it out (although that might not be easy if it’s been in since 1990) and measure the width of it or read off the numbers on the body of the BB. You’ll then a shimano square taper in that size.

    3. Which chain set can I use? XT looks like it’s been upgraded out of my old bike’s league.

    You can still buy chainrings to suit the old size bolt circle. You may have to buy the more boutique brands such as Middleburn but it’s going to be cheaper than a new chainset.

    Option 4 – Go to retrobike and sell it. There will no doubt be a few Cannondale nuts on there.

  • suparich

    Member
    16 February 2009 at 1:29 pm

    whats retro bike?

  • mr-marty-martin

    Member
    16 February 2009 at 1:30 pm

    type it in on google, its a website

  • suparich

    Member
    16 February 2009 at 1:42 pm

    I’d rather not sell it, unless it was for silly money, I’ve kept it going for so long.

    The crank arm thread is striped, both sides, so I probably do need a new chain set.

    Do any shimano ones still fit?

  • tomlevell

    Member
    16 February 2009 at 3:28 pm

    You can still get square taper crank sets from the online retailers but the BB lengths required changed in the early ninties when they went low profile.

    Pretty much anything should fit. I assume the BB shell width is one of the standard sizes. 68 or 72mm

  • suparich

    Member
    16 February 2009 at 3:36 pm

    so can I buy a Hollowtech chainset / bottom bracket and fit it myself??

  • tomlevell

    Member
    16 February 2009 at 3:43 pm

    They should fit but not knowing enough about that age Cannondale you could fall foul of the cranks hitting the chainstays as they might be wider than is standard now.

  • suparich

    Member
    16 February 2009 at 3:47 pm

    well, it’s a sm1000 i think? 1989. just before they introduced the replaceable hangers.

  • Steve Kish

    Member
    16 February 2009 at 5:16 pm

    Keep it!! Retro is so totally ‘now and happening’! 😛

    I use J D Whisker of Goff’s Oak, as they still have loads of NOS bike bits. Find them on the net.

Viewing 1 - 10 of 10 posts
Original Post
0 of 0 posts June 2018
Now

New Report

Close