Tips on DA9000 / switching between compact and standard

motd2k
motd2k Posts: 71
edited July 2013 in Workshop
Does anyone know if it's possible to switch the chainrings between compact and standard without having to remove the crankset from the bottom bracket first?

Comments

  • bondurant
    bondurant Posts: 858
    Are they not different BCD anyway...?
  • sungod
    sungod Posts: 17,357
    da9000 uses shimano's 4-bolt system, it's standard/compact compatible

    op - i think you should be able to swap rings in-place, bear in mind you'll need to reposition the front mech as well
    my bike - faster than god's and twice as shiny
  • TheRealGuybrush
    TheRealGuybrush Posts: 125
    Yes as other have said, the new bolt pattern of the 11spd cranks allow you to use any ring size by just swapping out the rings. No change in crank required.

    Although they say its better for performance, it can't hurt production costs either! :wink:
  • dennisn
    dennisn Posts: 10,601
    You also need to remember that there is a limit to the number of teeth difference between the big and small ring that the front D will handle. Not sure what that difference is but would bet it's around 18 teeth. In other words running a 34-53
    would be a 19 tooth difference and this may be too much for the front D to cope with.
    Key word is MAY.

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