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Cannondale Supersix Crank and Bottom Bracket Replacement

  • 20-03-2024 3:17pm
    #1
    Abhainn
    Registered Users, Registered Users 2 Posts: 2,238 ✭✭✭


    Hi

    My 2019 Supersix bottom bracket sheared off a couple of days ago, the crank rings are well worn also so looking for suggestions for a Cannondale direct replacement for the originals or best other options. I can't locate the originals anywhere just used versions.

    Crank - Cannondale Si, BB30a w/ FSA rings, 52/36

    Bottom Bracket - Cannondale Alloy Press Fit 30


    IMG-20240315-WA0000.jpg

    TIA



Comments

  • #2
    themighty
    Registered Users, Registered Users 2 Posts: 137 ✭✭themighty


    There are Cannondale cranksets available on Merlin, including a 52/36. I've no idea if customs etc is accounted for, haven't bought from them in a while. It won't let me link the full list for some reason.

    The 52/36.

    https://www.merlincycles.com/fsa-cannondale-one-si-mk3-chainset-11-speed-282205.html



  • #3
    Plastik
    Registered Users, Registered Users 2 Posts: 2,992 ✭✭✭Plastik


    https://www.cannondale-parts.de/Spindle-Road-SISL2-109mm/en


    You can also just buy replacement spindles.



  • #4
    nilhg
    Registered Users, Registered Users 2 Posts: 5,185 ✭✭✭nilhg


    As an alternative you can buy a replacement BB that will allow you to use a standard Shimano or and 24mm spindle crank (SRAM either)


    https://wheelsmfg.com/bottom-brackets/cannondale-bb30a.html

    https://wheelsmfg.com/bb30a-tech-info

    There are other makes too depending on your budget.

    i have a Wheels Manufacturing adaptor BB in my BB30 felt and it's been very reliable compared to the original setup



  • #5
    G1032
    Registered Users, Registered Users 2 Posts: 7,185 ✭✭✭G1032


    https://www.boards.ie/discussion/comment/121920436#Comment_121920436

    Which would be my recommendation. Switched to WheelsMfg on CAAD12 a while ago and my only regret was not doing so the day I bought the bike. Not only have BB issues gone away but front shifting has been totally transformed with the R7000 chainring I installed. The FSA cranks are not a patch on the R7000. I wonder too if there is a slight difference in width, even 0.5 of a mm, between the chain rings on the FSA and the R7000



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