Shimano 105 FC-5800 50/34 Road Bike Crankset 172.5mm Posted August 1, 2024 Shimano 105 FC-5800 50/34 Road Bike Crankset 172.5mmShimano 105 FC-5800 50/34 Road Bike Crankset 172.5mm. If you have any questions, do not hesitate to ask. Please view my other items, thank you.