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

SRAM, Force E1 2x Direct Mount, Chainring, Teeth: 50/37, Speed: 12, BCD: Direct Mount SRAM 8 Bolt, Black

Wheels Manufacturing, Shimano DM HG+ Outboard, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount Shimano, Single, 7075 Aluminum, Black

Truvativ, 22T, 9 sp, BCD 64mm, 4-Bolt, Inner Chainring, For MTB triple, Steel, Black, 11.6215.064.000

SRAM, X-SYNC 2 107mm, Chainring, Teeth: 40, Speed: 12, BCD: 107, Bolts: 4, Single, Aluminum, Grey