Shimano Dura-Ace FC-R9200 Crankset - 165mm 12-Speed 54/40t Hollowtech II Spindle Interface BLK CheckoutSpec= BoXXer Trail Doc is removable so

Trail Doc is removable so that it may be used with Tri Doc tripod

1:1 shifter-to-derailleur actuation ratio for precise light-action indexing

Grip Doctor Bar End PlugsRubber wedge expands safely inside the bar for maximum retention

CNC Machined 6061-T6 Aluminum Platform Injection Molded Copolymer Interface

Shimano Dura-Ace FC-R9200 Crankset - 165mm 12-Speed 54/40t Hollowtech II Spindle Interface BLK CheckoutSpec= BoXXer Trail Doc is removable soShimano Dura Ace FC R9200 Crankset 165mm 12 Speed 54 40t 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 weight