Shimano Dura-Ace FC-R9100-P Hollowtech II Power Meter Cranks w/o Chainrings

The Dura-Ace FC-R9100-P Power Meter Crankset by Shimano - Real-Time Power Measurement

Shimano presents its first-ever power meter - the Dura-Ace FC-R9100-P crankset. This crankset was developed in collaboration with bikefitting.com, Shimano's sister company specialising in bike ergonomics. Power is measured using the crank arm from both the left and right sides. The cadence and other important values for training, such as smooth pedal strokes, are also part of the power meter's range of functions. It can be paired with bike computers enabled with ANT+ or Bluetooth. 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 chainstays in the present version are not included. Only the chainring bolts are included.

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.

Specifications:

Application:

Road, Triathlon & Time Trial

Type:

power meter cranks (on both sides)

Compatibility:

2-speed

Chainring Mount:

110 mm pitch circle, 4-arm asymmetrical

Technical Information:

Series:

Dura-Ace R9100

Crank Arm Material:

Aluminium

Axle Material:

steel

Crank Arm Length:

165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm, 177.5 mm, 180.0 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

Compatibility:

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-RS501, 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

Chainrings:

Y-1VP34000, Y-1VP36000, Y-1VP39000, Y-1VP42000, Y-1VP98010, Y-1VP98020, Y-1VP98030, Y-1VP98040, Y-1VP98050

Features:

• 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)
• anodised crank arms

Technology:

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.

First-Generation Power Meters
Shimano first-generation power meters operate with a central power meter on the crankcase, positioned inconspicuously behind the chainrings. Strain gauges are installed in the crank arms, which record the power for the left and right sides separately. The power meters have Bluetooth and ANT+ compatibility to communicate with bike computers and smartphones. You can easily recharge the integrated battery via a magnetic adapter.

Manufacturer Numbers:

165.0 mm:

I-FCR9100PAXX

170.0 mm:

I-FCR9100PCXX

172.5 mm:

I-FCR9100PDXX

175.0 mm:

I-FCR9100PEXX

177.5 mm:

I-FCR9100PFXX

180.0 mm:

I-FCR9100PGXX

Contents:

• 1 x Shimano Dura-Ace FC-R9100-P crank 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
• 4 x chainring bolts

Order Together:

• Dura-Ace chainrings