The Shimano XTR SM-CRM95 chainring features SHIMANO DYNAMIC CHAIN ENGAGEMENT technology which features special gear teeth profiles that deliver exceptional chain engagement and chain retention when pedaling over bumpy or uneven offroad terrain. The SM-CRM95 chainring from Shimano is compatible with XTR M9100 and M9120 cranks. The SM-CR95 is compatible with 11 or 12 speed drivetrains and comes in 30 32 34 36 and 38 tooth count.