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  1. #1
    Member Sweetwater's Avatar
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    STI upgrade ... needed? ... recommendations?

    My 9-year old bike with 8-speed Shimano Ultegra STI shifters has been giving me shifting troubles that tell me the chain / cogs are worn (again) and the rear derailleur is probably worn out. The mail order places don't carry any 8-speed stuff anymore and my LBS doesn't have much. So it looks like planned obsolescence has won and I may have to upgrade just to get parts. Can anyone comment on the availability of 8-speed components? Do you know a source of parts?
    IF I decide to upgrade, should I go to 9-speed or jump to 10-speed? If I recall, the dropout spacing is 130-mm for all three.
    Thanks!

  2. #2
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    Ebay..

  3. #3
    Dog is my co-pilot 2manybikes's Avatar
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    What he said ^^^^^^^.

    Plus Google the name of the individual part.
    [SIGPIC][/SIGPIC]

  4. #4
    Senior Member
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    Less 8 speed (unless you like SORA) more 9 speed. Ebay is you best bet, but a 9 speed upgrade might not cost all the much. STI 9 speed shifters and a new chain and rear cassette. Your cranks and front and rear dr should work.

  5. #5
    Senior Member
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    A rear derailleur from any 9 or 10-speed group will work fine with your 8-speed shifters and cassette. Finding the cassettes is a bit of a problem but they are still out there. 8-speed chains are readilly available and a 9-speed chain will work too.

    If you want to upgrade a bit, 9-speed 105 components are selling at bargain prices right now since 10-speed 105 has been introduced. 9-speed components should be available for a long time to come too.

  6. #6
    Fueled by Scoobie Snacks! Boatdesigner's Avatar
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    Nashbar has 8 spd cassettes for $19.95. Available in 11x28, 12x32, 12x28, 12x21 or 12x23.

  7. #7
    The Rabbi seely's Avatar
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    Actually, an 8spd derailleur will generally work with a 9spd STI shifter, if you let the low limit out a bit. I really doubt your rear derailleur is worn out, I think I have actually seen one derailleur that was truly "worn out". If you go 9spd, get some Tiagra/105 9spd shifters (work great + cheap), keep your rear derailleur (maybe get new pullies?), and replace the cassette + chain.
    commuter turned bike mechanic turned commuter (also a Velocity USA employee, but this is my personal account)

  8. #8
    feros ferio John E's Avatar
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    Convert to friction/ratchet barcons and stop sweating component compatibility.
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

  9. #9
    Senior Member
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    Barcons are a great option, that is what I use anymore.

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