The Stages Power L for Shimano Ultegra R8100 is a single-sided power meter attached to a non-drive-side crank arm. It adds just 15g to the base arm weight and is compatible with all Shimano Hollowtech II road drivetrains, making it a direct upgrade for riders already running Shimano road components.

The unit features a low-profile housing with a robust door interface for battery access, rated IPX7 for water resistance. Power accuracy is ±1.5%, and the meter captures cadence across a wide range to suit varied training intensities. A standard coin cell battery powers the unit without requiring frequent replacement.

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