Shimano SLX SM-CRM75 Shimano Direct Mount Chainring - Shimano Direct Mount - Round - Black - Grey - 30T YGroup_7033412255789 the Grip Shift from Sram

the Grip Shift from Sram is the answer

Chrome plated heat treated steel for long term durability

Omni-BackUp Elite

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Shimano SLX SM-CRM75 Shimano Direct Mount Chainring - Shimano Direct Mount - Round - Black - Grey - 30T YGroup_7033412255789 the Grip Shift from SramThe SLX SM CRM75 chain ring uses the same direct mount system as XTR and also features Dynamic Chain Engagement. With a narrow wide tooth profile, it provides excellent chain retention and less chain vibration even on bumpy trails. Who's this item for: Designed for all riders using Shimano 12 speed direct mount cranks and Shimano 12 speed chains. Number of teeth: It is available in 30T 34T options. Mounting style: Mounts using Shimano's Direct mount