SHIMANO/CAMPY MIX - DON'T SHOOT!

bikeandy
bikeandy Posts: 14
edited October 2007 in Workshop
Just bought a lovely new Planet X Carbon Superlight with Ultegra. Just to be a total carbon completest I'd like to swap to a Carbon Chorus chainset. I'd have really liked the bike fully kitted with Campy but the big S pricewas just too good to miss. Any idea if combining this crank with the Ultegra front Mech and Shifters will give me a problem? In theory both 10 speed but don't know what the relative inter-ring spacing is for the 2 systems.

Ta

Comments

  • aracer
    aracer Posts: 1,649
    Should work fine. Though of course you still have the problem of having alu STIs when you can get carbon Ergos. :lol:
  • bikeandy
    bikeandy Posts: 14
    Oh I know! Plan is to use the P-X as donor to my steel hack over time and end up fully campy on my best bike. Change of chainset only (in theory) will require a change of the one component. STI's will require new mechs/cassette too.
  • aracer
    aracer Posts: 1,649
    http://www.jtekengineering.com/shiftmate.htm]

    ..though of course upgrading the mechs to Campag too gets you yet more carbon :D
  • eh
    eh Posts: 4,854
    Mixing and matching is the way forwards IMO and something mtbers have done for years. Provided you change the BB then I can't see there being a problem. However, I don't understand why you want to replace one of the best chainsets on the market for one that from an engineering point of view isn't as great. But heh it's your money.
  • aracer
    aracer Posts: 1,649
    What's wrong with UT from an engineering POV then?
  • Monty Dog
    Monty Dog Posts: 20,614
    So having to manually fiddle with bearing preload with a naff plastic preload adjuster and use a crude pinch-bolt to hold the cranks in place is good engineering? eh - just let me know what products you've used your expert engineering expertise on and remind me to avoid them like the plague - just hope it wasn't a nuclear power plant!
    Make mine an Italian, with Campagnolo on the side..
  • magliaceleste
    magliaceleste Posts: 748
    I ran a Campag Record UT crankset (compact) with Dura Ace 10 speed gear on my Bianchi until a few months ago (when I swapped to a full Campy Gruppo).

    It might look "weird" but it works absolutely perfectly.
  • acorn_user
    acorn_user Posts: 1,137
    You could always get the Fulcrum UT cranks if your were worried about road nazis enforcing drivetrain purity ;)
  • nicklouse
    nicklouse Posts: 50,673
    Monty Dog wrote:
    So having to manually fiddle with bearing preload with a naff plastic preload adjuster and use a crude pinch-bolt to hold the cranks in place is good engineering? eh - just let me know what products you've used your expert engineering expertise on and remind me to avoid them like the plague - just hope it wasn't a nuclear power plant!

    just to help me understand. you are against the shimano HT11 set up but for ?

    the plastic adjuster can be replaced with a metal one.

    how does your prefered bb set up compensate for bb width differences. (a 68mm bb is not 68.0mm wide).

    not dissing anything just interested from an engineering point of view.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • magliaceleste
    magliaceleste Posts: 748
    The Shimano HTII spacers are usually 2.5mm (on MTBs at least), so if a 68mm shell is too far out, can't see how they would help you anyway? I guess the preload takes care of minimal differences?

    [Come to think of it, do Shimano road cranksets even come with spacers? Don't recall any on my R700 cranks but maybe I chucked them in the toolbox]

    With regard to small shell differences on Ultra Torque cranks, there is a wavy washer inside one of the bb cups that gets compressed.

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