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rear...correct?

  1. O

    Standard sprockets on an 04 Factory are 16 front and 40 rear...Correct?

    I'm a little confused after researching sprockets on here. Am I right in thinking the 2004 Factory ran a 16 tooth front and a 40 tooth rear sprocket which is different to the original Mille's ratio? I want to improve acceleration so was thinking of a 15t front and a 42t rear...Would that work...