Rotor Round Ring 52T Road,ROTOR Round Ring Aero Singlespeed (BCD110x4) - ROTOR Store,Rotor noQ 110 x 4 Asymmetric BCD Round Chainring: 52t outer for use with 36t inner rings | Tree Fort Bikes,Rotor Aero 110mm 4-Bolt Round Ring 50/37t Chainring Set 169g for Sram AXS,Rotor noQ 110 x 4 Asymmetric BCD Round Chainring: 52t outer for use with 36t inner rings | Tree Fort Bikes