52-36 and 50-34 chainring options.
Shimano Ultegra R8100 12s Chainset - 175mm-52/36
Shimano Ultegra R8100 Chain rings 50-34 12 speed Compact
Shimano Ultegra R8100 NEW 52/36 Chain Rings 12 Speed
Shimano Ultegra R8100 Crank Arm Protection Set | Shield Clear Vinyl | Cyclistick
Shimano Ultegra R8100 12 Speed LEFT RIGHT CRANKSET 165mm
Shimano Ultegra R8100 Chain rings 52-36 12 speed semi-compact
