Inpeak Ultegra R8100 Powercrank-E Twin2 Dual-Sided Power Meter for Shimano Crankset

The Inpeak Ultegra R8100 Powercrank-E - Twin2 is an advanced dual-sided power meter seamlessly integrated with the Shimano Ultegra FC-R8100 crankset, designed to meet the highest standards of precision and reliability for demanding cyclists. This power meter represents the evolution of the POWERCRANK-E line, now enhanced with additional strain gauges on the sides of the crank for even more accurate power measurement.

Designed with modern technology, the Powercrank-E features a rechargeable battery charged via a magnetic USB cable, making it not just a power meter but your essential training companion. It transmits power, cadence, and detailed cycling performance data using ANT+ and BLE protocols, ensuring compatibility with a wide range of devices. Its low-profile, waterproof, and durable construction makes it ideal for road and gravel cycling, providing consistent readings regardless of weather conditions thanks to its automatic temperature compensation from -5 °C to +50 °C.

Built in Poland with meticulous attention to detail, this power meter offers exceptional value without compromising on quality. Each unit undergoes individual calibration to guarantee ±2% measurement precision, while its robust design has been tested by hundreds of professional riders. The Powercrank-E is equipped with advanced features such as torque effectiveness, pedal smoothness, cycling dynamics, and left/right balance, providing comprehensive insights to help you elevate your cycling performance.

What It’s Good For

• Providing highly accurate dual-sided power measurement for precise training and performance analysis.
• Seamless integration with Shimano Ultegra FC-R8100 crankset, maintaining bike aesthetics and functionality.
• Reliable data transmission through both ANT+ and Bluetooth Low Energy protocols for versatile device compatibility.
• Durable, waterproof design suitable for varied weather conditions and road or gravel riding.
• Convenient rechargeable battery system with long autonomy and quick charging via included USB cable.
• Advanced features such as torque effectiveness, pedal smoothness, cycling dynamics, and balance for in-depth performance insights.
• Automatic temperature compensation ensuring consistent accuracy across a wide temperature range (-5 °C to +50 °C).
• Individual calibration guaranteeing flawless measurement accuracy and reliability.

What It’s NOT Good For

• Use on bike cranksets other than Shimano Ultegra FC-R8100 or DuraAce FC-R9200 models without verification.
• Applications requiring power measurement outside the specified range of 20-2000 W.
• Users who prefer disposable battery systems instead of rechargeable solutions.
• Environments with temperatures outside the operational range of -5 °C to +50 °C for accurate readings.
• Riders who do not require advanced metrics such as torque effectiveness or cycling dynamics.
• Installation or usage without following the included detailed instructions and calibration procedures.

Frequently Asked Questions

How does the Inpeak Ultegra R8100 Powercrank-E improve training?
The power meter provides dual-sided, highly precise power and cadence data along with advanced cycling metrics like torque effectiveness and pedal smoothness. This data helps cyclists analyze their performance in detail and tailor their training accordingly.

Is the power meter compatible with all devices?
Yes, it uses both ANT+ and Bluetooth Low Energy protocols, making it compatible with most cycling computers, smartphones, and training apps including Zwift.

How long does the battery last and how is it charged?
The rechargeable battery offers up to 90 hours of use on a full charge and can be recharged in about 2 hours using the included magnetic USB cable.

Can the power meter withstand harsh weather?
Yes, it features an IP67-rated waterproof and durable housing built to perform reliably in wet and variable weather conditions.

Is calibration required?
Each power meter is individually calibrated before installation, and manual zero-offset calibration is supported to maintain measurement accuracy over time.