Miche Shimano Cassette Lockring for 12-18t Top Cog Review Posted by GiantPandaisy May 26, 2018 in Drivetrain Components This fits your . Make sure this fits by entering your model number. Cog Teeth: 12-18teethFits: ShimanoTeeth: 12-18 Teeth Use with 12-18 tooth top cogs Cycling Miche Outdoor Recreation Parts & Components Sports & Outdoors