SKU: 16577549244

Shimano FC-R8100 Ultegra 12-Speed Crankset w/Inpeak Powercrank-E (Take-Off)

Sale price$259.20 Regular price$288.00
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

Shimano FC-R8100 Ultegra 12-Speed Crankset w/Inpeak Powercrank-E (Take-Off)The INPEAK POWERCRANK E Shimano R8100 Power Meter Crankset is the rechargeable version of the POWERCRANK. It measures the power generated by your left leg and doubles it to determine your total watts. Data transmits via ANT+ or Bluetooth Smart, ensuring seamless connectivity with your preferred head unit or training app. Designed in Poland, INPEAK engineered the POWERCRANK E sensor to handle whatever the Polish climate threw their way. As a result,

The INPEAK POWERCRANK-E Shimano R8100 Power Meter Crankset is the rechargeable version of the POWERCRANK. It measures the power generated by your left leg and doubles it to determine your total watts. Data transmits via ANT+ or Bluetooth Smart, ensuring seamless connectivity with your preferred head unit or training app.

Designed in Poland, INPEAK engineered the POWERCRANK-E sensor to handle whatever the Polish climate threw their way. As a result, the INPEAK POWERCRANK-E is IP67-rated for water and dust resistance. Alongside water and dust protection, it features active temperature compensation from 23°F to 122°F. While the INPEAK can withstand any adventure, it is one of the lightest options available and adds only 10 grams to the crank arm. With USB charging there is no more searching for a spare battery, just charge and ride.

Product Details:

  • Compact Design: Only 6 mm thick and 10 grams means the sensor fits most frames and adds minimal weight
  • Data Multiple Ways: ANT+ and Bluetooth Smart connects to head units such as a
    Garmin Edge and a variety of training apps such as Zwift Power Measurement
  • This INPEAK power meter measures left leg power and doubles the value to account for both legs (assumes both legs are generating the same force)
  • Power range: 0 – 2000 W
  • Cadence range: 20 – 200 RPM
  • Measurement accuracy: ± 2%
  • Weight: serial crank weight + 10g [L]
  • Internal battery: LiPo rechargeable cell
  • Battery life: up to 90 hours
  • USB charger required: 5VDC, 1000mA (1A) [not included]
  • Level of water resistance: IP67
  • Working temperature: -5°C to +50°C
  • Battery charging temperature: +5°C to +40°C
  • Storage temperature: -20°C to +50°C

Transmitted data:

  • Power [W]
  • Cadence [RPM]
  • Torque effectiveness (TE)[%]
  • Pedal smoothness (PS) [%]

FC-R8100 Crank Features

  • Hollowtech 2
  • Weight: 700g,711g
  • Chain: CN-M8100
  • Threaded BB Shell Width: 68/70
  • Chain Ring Combination: 52-36
  • Crank Arm Length: 172.5

*Does not come with CG or BB Parts.

ITEM NUMBER: FC-R8100

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16577549244

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★★★★★ 4
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Reviewed in the United States on May 26, 2026
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Reviewed in the United States on April 26, 2026
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Debra
Pawtucket, US
★★★★★ 5
Loved it! Buying again!
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Reviewed in the United States on April 20, 2026
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Jenni B
Alexandria, US
★★★★★ 3
This product is not Sheer! Leaves a very visible white cast.
Don’t let this one fool you. Although this is a great brand and it does its job when it comes to sun protection, IT IS NOT SHEER! It left the worst white cast on my brown skinned baby. Left a really white cast on myself and I’m very fair skinned. Only reason I’m giving it 3 stars is because I purchased it because it claimed to be sheer and it is not.
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Reviewed in the United States on June 7, 2026
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S. Warren
Louisville, US
★★★★★ 5
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