The SM-CRM91 is a dedicated 1x11 speed chainring for XTR M9000/M9020 cranksets. It features Dynamic Chain Engagement technology, a unique tooth profile that provides superior chain retention, drivetrain smoothness, and less chain noise. This updated version of the chainring improves on the previous chainring by including a narrow-wide tooth profile for even better chain engagement. Available in 30t, 32t, and 36t to suit any rider in any condition.
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