Shimano Ultegra FC-R8000 11-speed Chainring 34t - 36 - 39 - 46 - 50 - 52 - 53t

34t Y1W834000 for Type MS (for 50-34T). Shimano Ultegra 11-Speed Chainring FC-R8000. 53t Y1W898040 for Type MW (for 53-39T). Group: Ultegra 11-Speed. Shimano Part Numbers For a 2x11 Speed Setup. 52t Y1W898030 for Type MT (for 52-36T).