Scientific training requires accurate measurement and user-friendliness, and the new ULTEGRA R8100 power meter has both. Its dual-sided measurement is accurate within 2.0% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and Bluetooth®LE connectivity makes using and recording your workouts easier than ever.


Features:

- Integrated, waterproof, and rechargeable Li-ion battery
- Up to 300+ hours of ride time * Depending on ANT+/Bluetooth®LE settings
- Accurate data collection
- ±2.0% strain gage accuracy throughout the entire calibration range
- Proprietary strain gauge
- Possible to start quickly
- Simple zero offset calibration with switch on transmitter
- Active temperature compensation
- Software automatically compensates for temperature changes
- The provision of new force vector data makes it the optimal training tool to analyze and improve pedal stroke efficiency
- With SHIMANO CONNECT Lab, you can analyze and visualize your training and power data


Specifications:

- Rear Speeds: 12-speed
- Front Speeds: 2
- Crank arm length(mm): 172.5
- Chain Guard: Without CG
- Gear Combination: Without chainring

Know yourself. That is the key to speed.
There´s more to going fast than just pedaling harder.
Speed is Science.
Introducing the new power meter from SHIMANO.
Accurately visualize your pedal stroke with the Force Vector feature.
Analyzing your pedaling enables you to train more effectively.
Become the fastest rider you can be with a SHIMANO power meter.

Visualize your pedal stroke with Force Vector analysis.
Sophisticated sensors accurately measure pedaling.
The force vector depicts the size and direction of force to visualize the quality of your pedaling.

Utilize data to improve performance.
Various types of data regarding your riding can be displayed by linking ride data with SHIMANO CONNECT Lab. Analyzing and managing data leads to improved performance.

Continue to use the device you already own.
SHIMANO power meters support Garmin and Wahoo in addition to the E-TUBE RIDE mobile app.
You can continue to use the device that you already own.

Constantly update your riding to become the fastest you can be.
Measure. Analyze. Improve. Become the fastest you can be.
Your journey to greater speed starts with a SHIMANO power meter.

Simple 3-step configuration
STEP1
Use E-TUBE PROJECT Cyclist to update the power meter to the latest firmware and configure the various settings.

STEP2
Connect to the various devices to display and record.
When using a smartphone
Download the E-TUBE RIDE app
*Select Bluetooth® communication on the power meter

When using GARMIN
Download the Connect IQ app
*Select ANT communication on the power meter
Garmin Edge® 1050, Edge® 840, Edge® 840 Solar, Edge® 540, Edge® 540 Solar are now supported.

STEP3
Upload the information recorded with each device to SHIMANO CONNECT Lab for analysis.
Visualize your pedal stroke with Force Vector analysis