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I'll be switching from a 970 11-32 cassette to an 11-34 990... My bike already has a long cage X9 rd (stock component)... Will I need to add some extra links? Or switch to a longer chain?Bikinfoolferlife said:Your drivetrain is probably compatible since you're running an 11-32 now, but if you installed a short cage rear derailleur then it could be an issue; chain length might not be optimal either.
cheers