DURA-ACE Dual Sided Power Meter HOLLOWTECH II Road Crankset 2x11-speed




DURA-ACE - Dual Sided Power Meter- HOLLOWTECH II - Road Crankset - 2x11-speed

The choice of the world's best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weigh while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options. The addition of a reliable, accurate, waterproof power meter makes this crank an even more valuable tool to serious cyclists. With a rechargeable Li-ion battery, left/right balance, and Bluetooth LE and ANT+ connectivity, the SHIMANO DURA-ACE Power Meter sets a new standard in cycling data collection.

  • Integrated design
  • Reliable electric system
  • Waterproof in all conditions
  • Easy maintenance
  • Integrated rechargeable battery
  • Battery charged for less trouble
  • Easily change chainrings without affecting power
  • Clearance with frame
  • Enough clearance with our direct mount brake caliper
  • Accurate data collection
  • ±2% (300W, 90 rpm) accuracy of strain gage measured power in full-range
  • Stable power measurement system at the various stepping positions
  • Active temperature compensation
  • Own developed strain gauge
  • Software compensate automatically
  • Battery: rechargeable Li-ion battery
  • 300+ hours of ride time
  • Quick response and operation without stress
  • Possible to start quickly
  • Simple zero reset with switch on transmitter
  • Direct response
  • Both left and right side connected with cable
  • Magnet based cadence
  • Bluetooth®LE and ANT+
  • Wireless firmware update system



  • icon_bc_bluetooth
  • icon_bc_antplus


Color Series color
Average weight 696 (53-39T) 695 (52-36T) 685 (50-34T)
Remarks * Crankset specifications not listed here are the same as FC-R9100 Chemistry: Li-ion Rated voltage: 3.7 V Rated capacity: 0.66 Ah Rated capacity: 2.442 Wh
Threaded bottom bracket shell width (mm)_70
Chainring combination 53-39T 52-36T 50-34T
Compatible bottom bracket type_Outboard
Crank fixing screw included
Crank arm length (mm)_170
Crank arm length (mm)_172.5
Crank arm length (mm)_175
Spider/Gear arms 4
HOLLOWTECH crank arm
Optional chain guard_Without chain/bash guard
Recommended bottom bracket_Press-fit SM-BB92-41B
Recommended bottom bracket_Threaded (normal) BB-R9100
Threaded bottom bracket shell width (mm)_68
Q-factor (mm) 146
Chain line (mm) 43.5
Compatible chain HG-EV 11-speed, HG-X11
Firmware update by E-TUBE PROJECT
P.C.D. left / right (mm) 110
Rear speeds 11
Accuracy (%) ±2
Active temperature compensation
Battery_Charging cable Included
Battery_Charging port
Battery_Life 300 h or longer
Battery_Type_Lithium ion
Cadence mesurement_Magnet
Di2 connectivity wireless_ANT+ _Bicycle power
Di2 connectivity wireless_Bluetooth® LE_Cycling power
Di2 connectivity wireless_Bluetooth® LE custom (*1)_Compatible with E-TUBE PROJECT
Di2 connectivity wireless_Bluetooth® LE custom (*1)_Compatible with E-TUBE RIDE
Force measurement_Left side
Force measurement_Number of strain sensor 24
Force measurement_Right side
LED for system status
Number of control button 1
SD300 connector (pcs) 0
SD300 port (pcs) 0
SD50 connector (pcs) 0
SD50 port (pcs) 0
Zero offset_By control button
Zero offset_By device


  • Wheel DURA-ACE C60 Tubular Disc Brake Rear Wheel
  • Outer Casing SHIMANO Shift Cable Housing for Rear Derailleur
  • Wheel DURA-ACE C24 Clincher Front Wheel
  • Wheel DURA-ACE C40 Clincher Front Wheel


  • Chainring Chainring 55T for FC-R9100/FC-R9100-P
  • Chainring Chainring 54T for FC-R9100/FC-R9100-P
  • Chainring Chainring 53T for FC-R9100/FC-R9100-P
  • Chainring Chainring 52T for FC-R9100/FC-R9100-P