4iiii PRECISION 3 Shimano Ultegra R8100 Single-Sided Crankset
USD $639.99
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4iiii PRECISION 3 Shimano Ultegra R8100 Single-Sided Crankset
The 4iiii PRECISION Shimano Ultegra R8100 Single-Sided Crankset brings 4iiii left side power to Shimano’s new Ultegra 12-speed groupset! The 4iiii PRECISION 3 power sensor is accurate to +/- 1.0%, is lightweight and features an 800 hour battery life. The power meter is compatible with both ANT+ and Bluetooth SMART devices. This means you can use it with your favorite bike computer, smart phone or indoor training app. Please note – this crankset measures left leg power only. OptionsChainrings: 50/34 | 52/36 Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm Tools Needed for Installation
You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.Shimano Crank Arm Cap Tool 5 mm Allen key In the Box 4iiii PRECISION Shimano Ultegra R8100 Single-Sided Crankset CR2032 coin cell battery Compatibility Bottom Bracket:
This power meter is compatible with 2x12 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8100 crankset on their bike and therefore, it's an easy swap. However, it can be used on any road bike as long as its 2x12 with a 24 mm bottom bracket. Check Frame Clearance:
Crank-arm based power meters like this one attach a sensor on the inside of the left crank arm. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. Therefore, you should make sure you have at least 8 mm of clearance between the left crank arm and the chainstay - and that you don't have a bottom bracket mounted rear brake (used on some aero and TT bikes). The important area to measure is right in the middle of the crank arm. Please refer to the image below. Specs Name 4iiii PRECISION 3 R8000 Crankset Bike Type Road Location of Power Measurement Crank arm Left or Both Legs Measured Left Independent Left/Right Measurement No Installation More involved (60 min. estimated) Crank Arm Material Aluminum Communication Protocol ANT+ and Bluetooth SMART Claimed Accuracy +/- 1.0% Active Temperature Compensation Yes Weight NA Battery Type CR2032 Battery Life 800 hours Method of Cadence Measurement Accelerometer BCD 110 4-bolt asymmetric Spindle Size 24 mm Q Factor 146 mm Warranty 3 years Why Buy from Power Meter City 1. We ship fast! All orders ship on the same day your order is placed! 2. Free shipping on all orders in the U.S. 3. We are an authorized 4iiii dealer and this product comes with a full warranty. 4. Expert advice and customer service in case you need any help. 5. We offer a free, 30-day return policy on new items. 6. We offer 20% off TrainingPeaks Premium when you buy a power meter. About our Company At Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service. We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.
The 4iiii PRECISION Shimano Ultegra R8100 Single-Sided Crankset brings 4iiii left side power to Shimano’s new Ultegra 12-speed groupset! The 4iiii PRECISION 3 power sensor is accurate to +/- 1.0%, is lightweight and features an 800 hour battery life. The power meter is compatible with both ANT+ and Bluetooth SMART devices. This means you can use it with your favorite bike computer, smart phone or indoor training app. Please note – this crankset measures left leg power only. Options
You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.
This power meter is compatible with 2x12 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8100 crankset on their bike and therefore, it's an easy swap. However, it can be used on any road bike as long as its 2x12 with a 24 mm bottom bracket. Check Frame Clearance:
Crank-arm based power meters like this one attach a sensor on the inside of the left crank arm. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. Therefore, you should make sure you have at least 8 mm of clearance between the left crank arm and the chainstay - and that you don't have a bottom bracket mounted rear brake (used on some aero and TT bikes). The important area to measure is right in the middle of the crank arm. Please refer to the image below. Specs Name 4iiii PRECISION 3 R8000 Crankset Bike Type Road Location of Power Measurement Crank arm Left or Both Legs Measured Left Independent Left/Right Measurement No Installation More involved (60 min. estimated) Crank Arm Material Aluminum Communication Protocol ANT+ and Bluetooth SMART Claimed Accuracy +/- 1.0% Active Temperature Compensation Yes Weight NA Battery Type CR2032 Battery Life 800 hours Method of Cadence Measurement Accelerometer BCD 110 4-bolt asymmetric Spindle Size 24 mm Q Factor 146 mm Warranty 3 years Why Buy from Power Meter City 1. We ship fast! All orders ship on the same day your order is placed! 2. Free shipping on all orders in the U.S. 3. We are an authorized 4iiii dealer and this product comes with a full warranty. 4. Expert advice and customer service in case you need any help. 5. We offer a free, 30-day return policy on new items. 6. We offer 20% off TrainingPeaks Premium when you buy a power meter. About our Company At Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service. We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.
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