SRAM, Force E1 2x Direct Mount, Chainring, Teeth: 48/35, Speed: 12, BCD: Direct Mount SRAM 8 Bolt, Black

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

Look, Mounting hardware for SRAM E Tap chainrings

Wheels Manufacturing, Shimano DM HG+ Outboard, Chainring, Teeth: 28, Speed: 12, BCD: Direct Mount Shimano, Single, 7075 Aluminum, Black