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 7 - Aug 12

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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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4.4 ★★★★★
Based on 8 reviews
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Trina2Cute
West Palm Beach, US
★★★★★ 1
Poor Quality
This suit was for my nephews school dance. The look is great however, its not of good quality. The material is cheap and looks as though it should be a costume. When my nephew tried it on it looked baggy. I returned the suit but have yet to receive a refund.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2024
C
Verified Purchase
Che
Pawtucket, US
★★★★★ 5
My son usually wears a Xl in men's clothing, suggests to go up 1 size to be safe
Size: XX-Large, Color: Navy With Blue, Size: XX-Large, Color: Navy With Blue
My son and I picked this suit out for his prom night coming up in May 2026. He trird it on and it fits, looks, and feels great on him!!! Color was spot on to what we wanted.. And how the picture looks is how it exactly came. He ordered a XXL, is 5'9" and weighs 235lbs
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Reviewed in the United States on February 4, 2026
R
Verified Purchase
rose
Cuba, US
★★★★★ 5
Awesome Suit!!
I purchased this suit for my boyfriend to wear to a party. I ordered an XL, he is 6'6" and 230lbs, initially the fit was fantastic and looks amazing but after wearing it and moving around in it for about 30 minutes, the pants started to slip down. The fabric has quite a bit of spandex in it and tends to stretch out after wearing for a little bit, it fits great right after it has been dried but then stretches out again. I ended up taking in the waist a little bit so the pants stay up, a large would likely have been a better fit. But he always looks amazing when he wears it and gets lots of compliments on the fun pattern. Definitely worth it!
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Reviewed in the United States on December 7, 2024
J
Verified Purchase
jayymerk
Dallas, US
★★★★★ 5
Great suit!
Size: X-Large, Color: Navy With Blue
I was pleasantly surprised by the quality of this Mage Male dress suit. The material feels very soft with a velvet-like texture that makes the entire outfit pop without being over the top. This suit is perfect for prom, weddings, or any event where you want to elevate your look a bit. Sizing was accurate for me, so make sure you follow the size chart closely. I recommend picking up an inexpensive tape measure here on Amazon to double-check your measurements — it makes a difference. For the price, this suit is absolutely worth it and I’d buy it again.
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Reviewed in the United States on December 3, 2025
B
Verified Purchase
Brad Nuzum
Lexington, US
★★★★★ 5
Top notch suit
Material quality was too notch well worth the money. The size was true to size in all areas. Very stylish suit and so many compliments on it.
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Reviewed in the United States on November 16, 2025

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