Ultegra R8100-P Dual-Sided Power Meter

Shimano Ultegra R8100-P Dual-Sided Power Meter

The Shimano Ultegra R8100-P Dual-Sided Power Meter Crankset offers dual-sided power on a factory Shimano crankset. With a proprietary strain gauge design and power sensors bonded to each crank arm, the Shimano power meter measures the precise pedaling forces of each leg individually. Therefore, you can see total power as well as your power balance. It also features active temperature compensation, which means it’s always accurate, even when the weather or riding conditions change.

With a rechargeable lithium-ion battery, you get over 300 hours of battery life. This allows you to go weeks at a time without having to recharge. In addition, ANT+ and Bluetooth SMART means you can use the Shimano Ultegra Power Meter with any bike computer, smartphone, or indoor training app.

Key Product Details

Compatibility:

This power meter is compatible with 2×12 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8100 crankset on their bike and therefore, it’s an easy swap. However, it can be used on any road bike as long as it is 2×12 with a 24 mm bottom bracket. See Compatibility tab for more information.

Power Measurement:

This Shimano power meter has a power sensor on both crank arms and measures power from both legs. It is also able to measure your left vs. right leg power.

Key Features:

Dual-leg power measurement, can measure left vs. right leg power, accurate to within +/- 2.0%, 300+ hours of battery life, rechargeable battery, Active Temperature Compensation, ANT+ and Bluetooth compatible. See Specs tab for more information.

Advice From Our Staff:

This is a great option for customers with a Shimano R8100 drivetrain that want to keep an OEM R8100 crankset on their bike but add power. We also like that fact that this crankset measures power from both legs, has a long battery life and uses Shimano’s proprietary strain gauge technology.

Options For This Power Meter

The Shimano Ultegra power meter is available in the following options:

• Crank Arm Length: 160 mm | 165 mm | 170 mm | 172.5 mm | 175 mm