Shimano FC-R8100 Front Crankset Ultegra 52-36 172.5mm 12-Speed skip-stock-sync-update while the extra-hardened steel construction

while the extra-hardened steel construction guarantees durability

and three-bolt cargo mounts

Secure round base is compatible with most tubeless rims and a perfect fit for all Stan’s BST and BST-R rims

It’s you

Shimano FC-R8100 Front Crankset Ultegra 52-36 172.5mm 12-Speed skip-stock-sync-update while the extra-hardened steel constructionULTEGRA's new FC R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12 speed road lineup, the FC R8100 crank builds upon Shimano's legendary front