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  1. #1
    i never learn
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    Non-standard chainring combinations

    I've got a campagnolo centaur ultra-torque 10sp crank with the standard 39/53 double chainring combination. I'd like to switch to a different combination, but Campagnolo doesn't offer this option.

    I did find Campi-compatible chainrings with various tooth counts on this site. Do these work well (shifting, durability)? Can I run any combination as long as I don't exceed the rear derailleur capacity?

    http://www.ribblecycles.co.uk/sp/roa...ng/STROCHRI500

    http://www.ribblecycles.co.uk/sp/roa...pd/TAAACHRI350

  2. #2
    coprolite fietsbob's Avatar
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    so what combination Do you want? 39 is as small as you can fit on 135 bolt circle,
    39 is it , so there is a bigger small ring and smaller big ring.
    7075 aluminum is good , Stronglight and TA make top notch spare chainrings.
    so you will be reducing the wrap capacity required of your Rear derailleur

    Cyclocrossers often switch to a smaller big ring, on their cranksets.
    the Paris Roubaix racers swap in a bigger small ring.
    so it's all fine.

  3. #3
    AEO
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    if you don't mind mixing stuff, then you can always switch out your crankset for a shimano or sram offering.
    Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
    http://sanfrancisco.ibtimes.com/arti...ger-photos.htm

  4. #4
    i never learn
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    Quote Originally Posted by fietsbob View Post
    so what combination Do you want? 39 is as small as you can fit on 135 bolt circle,
    39 is it , so there is a bigger small ring and smaller big ring.
    7075 aluminum is good , Stronglight and TA make top notch spare chainrings.
    so you will be reducing the wrap capacity required of your Rear derailleur

    Cyclocrossers often switch to a smaller big ring, on their cranksets.
    the Paris Roubaix racers swap in a bigger small ring.
    so it's all fine.
    Hey thanks for the info... I wasn't sure if the non-oem rings work well. I was surprised that there were so few ring options from campagnolo when I started looking into this.

    After running Sheldon's gear calculator I'm probably going to run 39/48 so your're absolutely right that derailleur capacity is not an issue. I was just so happy to find such a large range of rings that I was looking at all the combinations Now I'll finally be able to put my 12-25 cassette to good use!

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