Shimano Ultegra FC-R8100-P 12-Speed Power Meter Crankset - 170 mm, Without Chainrings

Shimano Ultegra FC-R8100-P: Dual-Sided Power Measurement

🚴‍♀️ The Shimano Ultegra FC-R8100-P is a 12-speed road crankset equipped with an integrated dual-sided power meter. It is designed for cyclists who want to monitor their power output during rides and use accurate data to analyse and improve their pedalling efficiency.

By measuring power on both sides, the system collects information about the power generated during the pedal stroke, with a claimed accuracy of ±2.0% across the calibration range.

Integrated Power Meter

⚡ The Shimano Ultegra FC-R8100-P power meter features several functions designed to simplify performance monitoring and training analysis:

• Dual-sided power measurement.
• Claimed accuracy of ±2.0%.
• Quick and simple zero-offset calibration using the transmitter switch.
• Active temperature compensation to account for temperature changes through software.
• Force Vector data for a more detailed analysis of the pedalling motion.

The Force Vector function provides additional information about the pedalling motion, offering useful data for analysing pedalling efficiency and force distribution.

ANT+ and Bluetooth® LE Connectivity

📡 The Shimano Ultegra FC-R8100-P features ANT+ and Bluetooth® LE connectivity, allowing power data to be transmitted to compatible devices and applications for recording and analysing training sessions.

Through SHIMANO CONNECT Lab, users can also analyse and visualise training and power data, turning the information collected during rides into a useful tool for tracking performance and progress.

Integrated Rechargeable Battery

🔋 The power meter is powered by an integrated, waterproof rechargeable lithium-ion battery. Shimano states a battery life of up to 226 hours or more, depending on the ANT+ and Bluetooth® LE connection settings.

The integrated rechargeable system allows the power meter to be used without relying on replaceable batteries.

170 mm Crank Arms and Chainrings Not Included

📏 This version of the crankset features 170 mm crank arms and is supplied without chainrings. This configuration allows users to select compatible chainrings according to their drivetrain requirements and preferred gearing combination.

The crankset uses HOLLOWTECH II technology, part of Shimano's crankset design approach aimed at balancing stiffness, durability, weight and rotational efficiency.

Technical Specifications

Why Choose the Shimano Ultegra FC-R8100-P?

• ⚡ Integrated dual-sided power meter.
• 📊 Useful data for monitoring and analysing training performance.
• 📡 ANT+ and Bluetooth® LE connectivity.
• 🔋 Integrated rechargeable battery.
• 🌡️ Active temperature compensation.
• 📏 170 mm crank arms.
• 🔧 Supplied without chainrings for a more flexible drivetrain configuration.

Note: The crankset is supplied without chainrings. Check compatibility between your selected chainring combination, drivetrain and the components installed on your bicycle.