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A one-piece case design results in fewer parts
21% elastane
Helps prevent bottles launching from rear carriers
Carogna solves these problems
along with open-mesh sections
Shimano Ultegra R8100 Crankset Crankset Option:172.5mm / 52-36T A one-piece case design resultsULTEGRA'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
