Shimano Dura-Ace FC-R9200 Crankset - 172.5mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK ModelNumber=K9355 Includes a new tray/motor shroud

Includes a new tray/motor shroud USB ports and oversized buttons to upgrade a Park Tool PRS-33 or PRS-33 AOK into the PRS-33

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progressive increase in density toward the outside

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Shimano Dura-Ace FC-R9200 Crankset - 172.5mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK ModelNumber=K9355 Includes a new tray/motor shroudShimano Dura Ace FC R9200 Crankset 172. 5mm 12 Speed 52 36t Hollowtech II Spindle Interface Black. The Shimano Dura Ace FC R9200 crank performs two vital functions; transferring your pedaling effort into the drivetrain and ensuring the fastest most precise front shifting available. With HOLLOWTECH II crank arms to ensure light weight and Shimanos class leading chainring designs the FC R9200 wont let you down. Optimal balance of stiffness strength