SHIMANO ULTEGRA Dual-Sided Power Meter HOLLOWTECH II Road Crankset 2x12-speed
FC-R8100-P
Offering all the precision and functionality of the DURA-ACE power meter, the ULTEGRA FC-R8100-P power meter comes in a more affordable package.
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
SPECIFICATION ICONS
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Bluetooth
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ANT＋
PRODUCT SPECIFICATIONS
| MODEL NO | FC-R8100-P |
|---|---|
| SERIES | ULTEGRA R8100 Series |
| Average weight | 758 (50-34T) 769 (52-36T) |
| Remarks | Crankset specifications not listed here are the same as FC-R8100 * w/o chainrings Chemistry: Li-ion Rated voltage: 3.7 V Rated capacity: 0.66 Ah Rated capacity: 2.442 Wh |
| Chainring combination | 50-34T, 52-36T, w/o chainrings |
|---|---|
| Crank arm length (mm)|160 | X * |
| Crank arm length (mm)|165 | ✔ |
| Crank arm length (mm)|170 | ✔ |
| Crank arm length (mm)|172.5 | ✔ |
| Crank arm length (mm)|175 | ✔ |
| Force measurement|Right side | ✔ |
| Force measurement|Left side | ✔ |
| Force measurement|Number of strain sensor | 24 |
| Cadence measurement|Magnet | ✔ |
| Accuracy (%) | ±2 |
| LED for system status | ✔ |
| Number of control button | 1 |
| Zero offset|By control button | ✔ |
| Zero offset|By device | ✔ |
| Active temperature compensation | ✔ |
| Battery|Type|Lithium ion | ✔ |
| Battery|Life | 300 h or longer |
| Battery|Charging port | ✔ |
| Battery|Charging cable | EW-EC300 |
| Firmware update by E-TUBE PROJECT | ✔ |
| Di2 connectivity wireless|Bluetooth® LE|Cycling power | ✔ |
| Di2 connectivity wireless|ANT+ |Bicycle power | ✔ |
| Di2 connectivity wireless|Bluetooth® LE custom (*1)|Compatible with E-TUBE RIDE | ✔ |
| Di2 connectivity wireless|Bluetooth® LE custom (*1)|Compatible with E-TUBE PROJECT | ✔ |
| SD50 port (pcs) | 0 |
| SD300 port (pcs) | 0 |
| SD50 connector (pcs) | 0 |
| SD300 connector (pcs) | 0 |
