new Shimano ultegra inner chainring 36T
Shimano Ultegra R8000 Chainring 36t or 52t 11 Speed
New Shimano Ultegra Di2 R8150/R8170 Road Groupset 2x12 24 Speed 50-34T/52-36T
Shimano Ultegra R8100 4iiii Dual Precision Pro Powermeter Crankset– 175mm 52/36T
Shimano Ultegra FC-6800 11-speed Chainring 34t - 36t - 39t - 46t - 50t - 52t-53t
Shimano Ultegra Front Chainwheel Bottom Bracket 52-36T 172.5mm
Shimano Ultegra FC-R8100 12-Speed Crankset - 175mm, 52/36T
