Rated:
Title: Not just for single speeders.
Reviewer: Erik Osborn. (ME)
Bikeman Product Code: CR4190
I run a steel 30T inner ring on my 2x9 mountain bike setup.  The strong teeth stay true, wear longer, and keep chainsuck at bay better than an aluminum little ring.  It would be great if Surly made these in granny gear sizes for triple mtb cranks.

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