Stages Shimano Ultegra R8100 Power Meter

Stages Shimano Ultegra R8100 Power Meter

The Stages Shimano Ultegra R8100 Power Meter combines Shimano’s award-winning Ultegra groupset with Stages Cycling’s proven performance and dependability. The result is an accurate, lightweight, durable power that comes ready to ride on a Shimano R8100 crank arm. Compatible with all Shimano Hollowtech II road cranks, the Stages Ultegra R8100 runs off of a CR2032 battery and features 200 hours of battery life.

In addition, the power meter is extremely lightweight – adding only 15 grams to the weight of the crank arm. All Stages power meters are compatible with both ANT+ and Bluetooth SMART devices, which means you can use your favorite bicycle computer as well as a smartphone or tablet.

The Stages R8100 power meter (Generation 3) features radio antennas that are 6x more powerful than the previous version. This means better compatibility with both bike computers and watches. The new versions also feature improved accuracy (+/- 1.5%) and have an LED indicator light on the housing for improved ease of use.

~Stages Rider Support~

It has come to our attention that Stages no longer has the resources to offer product support or warranty services. That said, if purchasing a Stages product, we do our best to answer product or troubleshooting-related questions. Knowing this, please shop Stages products assuming there may not be any future manufacturer support. Please note that Power Meter City cannot facilitate any warranty services.

Key Product Details

Compatibility:

This power meter is compatible with Shimano R8100 cranksets. It can also be installed on other Shimano road cranksets, as long as they use Shimano’s Hollowtech II interface. See Compatibility tab for more information.

Power Measurement:

This Stages power meter measures left leg power and doubles the value to account for both legs (assumes both legs are generating the same force).

Key Features:

Affordable, accurate to within +/- 1.5%, lightweight at only 15 grams of added weight, 200+ hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatible, easy to install. See Specs tab for more information.

Advice From Our Staff:

Stages left side crank arms are some of our best-selling units. They work with most Shimano cranksets, are affordable and easy to install. The one consideration is they only measure left leg power compared to some other power meters that measure power from both legs (those versions usually cost more however).

Options For This Power Meter

Crank arm lengths: This power meter is available in the following crank arm lengths:

• 160 mm | 165 mm | 170 mm | 172.5 mm | 175 mm

Other Versions to Consider

Dual-Sided R8100 Crankset: We also sell the Stages Shimano Ultegra R8100 Dual-Sided Power Meter which is a complete crankset. It is more expensive, however it measures power from both legs.

Right-Side R8100 Crank Arm: If you currently have a Stages Shimano R8100 left side crank arm, we have the Stages Shimano Ultegra R8100 Right Side Power Meter which allows you to upgrade to a dual-sided power meter. Or, some bike frames cannot fit a left side crank arm-based power meter due to clearance issues with the chainstay. In these situations, the Stages right side power meter is a perfect solution.