SRAM, Bosch DU38 XX T-Type, Chainring, Teeth: 36, Speed: 12, BCD: Direct Mount Bosch DU38, Steel, Black

SRAM, X-SYNC Eagle Steel 6mm F1, Chainring, Teeth: 30, BCD: Direct Mount SRAM 3 Bolt, Bolts: 3, Steel, Black

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