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INPEAK

INPEAK POWERCRANK-E TWIN2 LR Shimano Ultegra R8100 Power Meter Chainset

The INPEAK POWERCRANK-E TWIN2 LR Shimano Ultegra R8100 Power Meter Chainset integrates two independent power meters, one on each crank arm of the Shimano... Read more

Recommended price* : 899,00 €

Regular price 819,90 €
Regular price Sale price 819,90 €
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Description

The INPEAK POWERCRANK-E TWIN2 LR Shimano Ultegra R8100 Power Meter Chainset integrates two independent power meters, one on each crank arm of the Shimano Ultegra FC-R8100 chainset, for complete dual-sided measurement of your road pedalling.

Strain gauges positioned on both sides of the crank arm deliver measurement accuracy of ± 2% across a range of 20 to 2000 W, alongside cadence, torque effectiveness, pedal smoothness and left/right balance. Cycling Dynamics are available on selected Garmin cycling computers and watches. The IP67-rated waterproof housing and active temperature compensation (ATC) ensure reliable readings from -5°C to +50°C.

Both sensors are powered by a rechargeable Li-Po battery, charged using the supplied magnetic USB cable, for up to 90 hours of use per side. ANT+ and Bluetooth Low Energy connectivity ensure compatibility with most cycling computers, watches and apps such as Zwift, while the INPEAK Manager app handles firmware updates and scale factor settings.

Designed and manufactured in Poland, each sensor is individually calibrated before dispatch. A comprehensive tool for improving on the road with detailed data on the balance between your legs.

Ref: 16133060100476

Key features

Independent left/right measurement with Cycling Dynamics analysis (Power Phase, left/right balance)

Redesigned power meter with additional strain gauges on the sides of the crank arm

Designed and manufactured in Poland, individually calibrated before dispatch

Rechargeable Li-Po battery charged via the supplied magnetic USB cable

Active temperature compensation (ATC) from -5°C to +50°C

IP67-rated waterproof, impact-resistant housing

ANT+ and Bluetooth Low Energy connectivity, Zwift-compatible

Firmware updates and scale factor adjustment via the INPEAK Manager app

Technical information

┘POWER METER
• Type: dual-sided power meter (TWiN2), one sensor per crank arm
• Measurement accuracy: ± 2%
• Power measurement range: 20 to 2000 W
• Cadence range: 20 to 200 rpm
• Weight: original Shimano Ultegra chainset weight + 10 g [left] + 10 g [right]
• Housing water resistance: IP67
• Manual zero-offset calibration: yes
• Active temperature compensation (ATC): yes, -5°C to +50°C
• Gyroscope + accelerometer (IMU): yes
• Torque effectiveness and pedal smoothness: yes
• Cycling Dynamics (Power Phase, Position): yes, available on selected Garmin cycling computers and watches
• Left/right balance: yes
• Operating temperature: -5°C to +50°C
• Storage temperature: -20°C to +50°C┌

┘BATTERY
• Type: rechargeable Li-Po (one battery per sensor)
• Capacity: 110 mAh per sensor
• Battery life in use: up to 90 hours per sensor
• Standby battery life: up to 6 months
• Battery life in transport mode (ShipMode): up to 24 months
• Full charging time (0–100%): 2 hours
• Charging temperature: +5°C to +40°C
• Service life: less than 20% capacity loss after 300 full cycles (approximately 6 years of use)
• Charger required: 5 V DC, 1000 mA (not supplied)
• Low-battery notification: yes┌

┘SOFTWARE & CONNECTIVITY
• Dedicated app: INPEAK Manager (iOS/Android)
• Remote firmware updates: yes
• Scale factor adjustment: yes
• Zwift-compatible mode: yes
• ANT+ compatibility: yes
• Bluetooth Low Energy compatibility: yes
• Automatic sleep and wake: yes┌

┘COMPATIBILITY
• Shimano Ultegra FC-R8100 chainset, 2x12-speed
• Available crank arm lengths: 160 / 165 / 170 / 172.5 / 175 mm
• Available chainring combinations: 50-34T / 52-36T / 54-40T
• Fits a Hollowtech II bottom bracket┌

┘PACKAGE CONTENTS
• Shimano Ultegra FC-R8100 chainset (left and right crank arms) with integrated power meters on both sides
• Magnetic USB charging cable
• Quick instruction manual
• Sticker set
• Device data card┌

Price information

*Recommended retail price from supplier in July 2026