Stages Shimano 105 R7100 Power Meter

Stages Shimano 105 R7100 Power Meter

The Stages Shimano 105 R7100 Power Meter combines Shimano’s dependable 105 groupset with Stages Cycling’s proven performance and reliability. The result is an accurate, lightweight and durable power meter crank arm that cleanly integrates with a Shimano R7100 crankset. Compatible with all Shimano Hollowtech II road cranks, the Stages 105 R7100 runs off of a CR2032 battery and features 200 hours of battery life.

In addition, the power meter is extremely lightweight. It adds 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 R7100 Generation 3 power meter 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 +/- 1.5% accuracy and an LED indicator light on the housing for improved ease of use.

Product Details

Key Features of the Stages Shimano 105 R7100 Power Meter

• Accurate Readings: The Stages Power Meter is accurate to within +/- 1.5%, providing clear training data.
• Lightweight: Only adding 15 grams to the crank arm makes this power meter essentially unnoticeable.
• Clean Integration: Installed on a genuine Shimano 105 R7100 crank arm, the Stages sensor maintains OEM factory styling and performance.
• Data Multiple Ways: ANT+ and Bluetooth Smart connects to head units such as a Garmin Edge and a variety of training apps such as Zwift.

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).

Compatibility

This power meter is compatible with Shimano R7100 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.

Considerations

The Stages Shimano R7100 Power Meter measures power only from your left leg. This means total power is estimated by doubling the left leg’s output. While this works well for many riders it may be less accurate if there is a strength difference between your legs. This is common with single-sided power meters and worth considering if precise total power is your priority.

Advice From Our Staff

Stages left side crank arms are some of our best-selling units. They work with most Shimano cranksets and are affordable and easy to install. They are an excellent option for those already with a Shimano R7100 groupset wanting to add power meter functionality.

Options

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