Shimano Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset

Item number: 54638
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/170.0 mm 36-52
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/170.0 mm 36-52
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/170.0 mm 36-52
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/170.0 mm 36-52
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/170.0 mm 36-52
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/175.0 mm 39-53
Dura-Ace Power Meter FC-R9100-P Hollowtech II Crankset - black/175.0 mm 34-50
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Shimano Dura-Ace FC-R9100-P power meter crankset - the latest generation in power measurement

Developed in collaboration with, a subsidiary of Shimano, the Dura-Ace FC-R9100-P crankset is Shimano's first power meter specialising in bike ergonomics. The device measures power using the crank arm, measuring left and right leg performance separately. The cadence and other important values for training such as momentum can be calculated. The power meter can be paired with electronic displays enabled with ANT+ or Bluetooth capability. The FC-R9100-P cranks harness real-time power measuring and recording, and can aggregate and assess measurement data. Just like „normale“ FC-R9100 without power measuring, the Power Meter crankset is a hollowtech crankset with hollow forged aluminium arms and Hollowtech II construction for an optimum stiffness-to-weight ratio. The large chainring is hollow-formed (Hollowglide) and lightweight.

Information regarding the return of batteries and electrical equipment:

Information on the return and disposal of used batteries and electrical equipment can be found here.


Application: Road, Triathlon & Time Trial
Type: power meter crankset (dual-sided)
Compatibility: Shimano 2x11-speed
Chainring Mount: 110 mm pitch circle, 4-arm asymmetrical

Technical Information:

Series: Dura-Ace R9100
Crank Arm Material: Aluminium
Chainring Material: aluminium, carbon (CFRP) / aluminium
Axle Material: steel
Gradation: 34-50, 36-52, 39-53
Crank Arm Length: 170.0 mm, 172.5 mm, 175.0 mm
Chainline: 43.5 mm
Q-Factor: 146 mm
Axle Diameter: 24 mm
Compatible BSA Shell Width: 68 mm
Recommended Bottom Bracket: BB-R9100 or SM-BB92-41B Press Fit Hollowtech II (not included)
Recommended Chain: HG-EV 11-speed, HG-X11 (e.g. CN-HG901-11)
Tolerance: +/- 2%
Point of Measurement: crank arm
Power Source: lithium-ion battery, integrated
Battery Life: min. 300 h
Data Collected: cadence, power, right-left balance, pedal stroke uniformity, torque
Data Transfer: ANT+, Bluetooth LE


Shifter: ST-R9100, ST-R9120, ST-9001, ST-9000, SL-BSR1, ST-R8000, ST-R8020, ST-R8025, ST-6800, ST-5800, ST-R7000, ST-R7020, ST-R7025, ST-RS685, ST-RS505, ST-U5060, SL-RS700, SL-U5000, ST-RX810, ST-RX600, ST-R9150, ST-R9160, ST-R9170, ST-R9180, ST-9070, SL-9071, ST-R8050, ST-R8060, ST-R8070, ST-6870, ST-6871, ST-R785, ST-RX815
Front Derailleur: FD-R9100, FD-R8000, FD-5801, FD-R7000, FD-R9150, FD-R8050
Bottom Bracket: BB-R9100, SM-BB9000, SM-BBR60, SM-BB6700, SM-BB5700, BB-RS500, SM-BB4600, SM-BB92-41B, SM-BB72-41B, SM-BB71-41B, BB-RS500-PB
Chain: CN-9000, CN-6800, CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500


- integrated design
- water-resistant and designed for use in rainy weather
- integrated, rechargeable battery (charging time 2.5 h)
- fast system start and direct response
- total power and separate measurement of left and right leg (strain gauges in the crank arms)
- simple manual zeroing by pressing a button
- firmware updates via E-Tube project
- easy chainring change, because strain gauges are integrated in the crank arms and power meter in the spider
- charging via magnetic adapter
- communication with ANT+ or Bluetooth LE-enabled devices
- hollow crank arms (Hollowtech)
- hollow-formed large chainring (Hollowglide)
- anodised crank arms and chainrings
- anodised aluminium chainring bolts


Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.

Power Meter
The " brain" of the power meter, the central measuring unit, is housed in the Dura-Ace crankset's case, while the strain gauges are integrated into the crank arm, which measures left and right input power separately. The central measuring unit is compact, and fixed discreetly and inconspicuously behind the chainstays. This makes it the lightest and cleanest integrated system on the market. This construction enables the chainstay to be changed out easily, without compromising the precision of the power meter. Shimano's new E-Tube Platform makes system checks or firmware updates easily possible through Bluetooth-supported communication over smartphones and tablets. To ensure communication and display data across multiple bike computers or GPS devices, the power meter crankset is equipped with Bluetooth and ANT+. An integrated rechargeable battery supplies the power meter with energy. The battery is charged via a small magnetic adapter, eliminating the need for a cap or cover and maintaining weather resistance under all conditions.

Manufacturer Numbers:

170.0 mm 34-50: I-FCR9100PCX04
172.5 mm 34-50: I-FCR9100PDX04
175.0 mm 34-50: I-FCR9100PEX04
170.0 mm 36-52: I-FCR9100PCX26
172.5 mm 36-52: I-FCR9100PDX26
175.0 mm 36-52: I-FCR9100PEX26
170.0 mm 39-53: I-FCR9100PCX39
172.5 mm 39-53: I-FCR9100PDX39
175.0 mm 39-53: I-FCR9100PEX39


- 1 x Shimano Dura-Ace FC-R9100-P crankset (34-50, 36-52 or 39-53 teeth) with power meter sensors
- 1 x Shimano crank bolt
- 1 x magnet set
- 1 x 1.5 m charging cable
- 1 x magnet positioning tool
- 1 x Shimano TL-FC40 crank assembly tool


  • black/170.0 mm 34-50: 685 g (ohne Innenlager)
  • black/170.0 mm 36-52: 695 g (ohne Innenlager)
  • black/170.0 mm 39-53: 696 g (ohne Innenlager)


  • black/170.0 mm 34-50, out of stock
  • black/170.0 mm 36-52, out of stock
  • black/170.0 mm 39-53, out of stock
  • black/172.5 mm 34-50, out of stock
  • black/172.5 mm 36-52, out of stock
  • black/172.5 mm 39-53, out of stock
  • black/175.0 mm 34-50, out of stock
  • black/175.0 mm 36-52, out of stock
  • black/175.0 mm 39-53, out of stock

Customer Reviews (2)


Customer Reviews (2)


Give us your opinion on this product.

by jean-baptiste w.  on 05.01.2021
verified purchase

Un composant vraiment utile et efficace pour controler et améliorer son coup de pédale. L'installation est relativement simple mais necessite une certaine rigueur (ne pas oublier la phase d'étalonnage tres facile mais indispensable). En comparaison au pédalier Stages Duraace, le pedalier 9100-P me semble plus efficace quoique legerement plus cher.
Bravo à bike-components pour la qualité du service !

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by Jörg T.  on 04.05.2019
verified purchase
1 of 2 customers found this review helpful.

Habe den Shimano Power Meter jetzt seit knapp einem Jahr und bin sehr zufrieden damit.
Anfangs hätte ich keine 5 Sterne gegeben, da die E-Tube Software auf dem iPhone nicht einfach zu paaren war, das ist jetzt aber seit einem Monat kein Problem mehr.
Der Shimano Power Meter hat den großen Vorteil, dass er voll integriert ist und auch soweit wasserdicht. Das Laden funktioniert mit einer USB-Powerbar ganz einfach. Eine Akkuladung hält "ewig", jedenfalls länger als 3 Monate.

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