Shimano, XT SM-CRM85, Chainring, Teeth: 32, Speed: 12, BCD: Direct Mount, Aluminum/Composite/Steel, Black

Shimano, XTR SM-CRM96, Chainring, Teeth: 30, Speed: 12, Front, Aluminum, Black, ISMCRM96AA0

Wheels Manufacturing, Shimano DM T-Type Inboard, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount Shimano, Single, 7075 Aluminum, Black

SRAM, Bosch DU38 T-Type, Chainring, Teeth: 34, Speed: 12, BCD: Direct Mount Bosch DU38, Black

SRAM, X-Sync, 30T, 11sp, Direct Mount Chainring, Offset 3mm, Steel, Black