Shimano GRX RX810 PRECISION 3+ Left-Side Power Meter
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Why We Like The Shimano GRX RX810 PRECISION 3+ Left-Side Power Meter
Whether chasing KOMs up steep climbs or riding virtually on Zwift in our living room, the Shimano GRX RX810 PRECISION 3+ Left-Side Power Meter measures and transmits our watts, cadence, and calories directly to our head unit with a +/-1% accuracy rate. It features an excellent battery life of up to 800 hours, an ultra-low and lightweight profile, and ANT+ and Bluetooth connectivity for use with our favorite apps and units. This left-side power meter comes ready to use straight out of the box, needing only to be installed on our Shimano GRX FC-RX810 crankset with the standard Shimano crank installation process.
Details
- Left-side power meter for Shimano GRX FC-RX810 cranksets
- Transmits watts, cadence, and calories to our head unit of choice
- 3 strain gauges measure all forces in the pedal stroke with +/- 1% accuracy
- Automatic terrain selector detects the surface for better feedback/data
- Features a 30-170RPM cadence range and a 4,000W power range
- CR2032 Coin Cell battery offers up to 800 hours of use
- Compatible with all indoor training apps, such as Zwift, with ANT+ or Bluetooth
- Locate quickly on an Apple product with the Find My app when not in use
- Item #FII000N
- Compatibility
- Shimano GRX FC-RX810
- Features
- IPX7 waterproof rating, automatic terrain selector, Apple Find My feature, ANT+ and Bluetooth connectivity
- Accuracy (+/-)
- +/- 1%
- Battery
- CR2032 Coin Cell
- Operating Time
- up to 800 hours
- Claimed Weight
- 9g
- Activity
- road cycling
- Manufacturer Warranty
- 3 years
Reviews
Q&A
What do you think about this product?
Overall Rating
3 based on 1 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.View
Selecting an option will reload the available reviews on the pageSeptember 4, 2024
Great Value, Some Issues
- Familiarity:
- I've put it through the wringer
I've got the previous version of this crank (Precision 3) and it's been working well for the most part. I don't dig deep into numbers so I'll trust other reviewers that accuracy is good - for me what matters is that it's easy to set up and just works. Setup is indeed easy, there's an app but that wasn't even needed to pair it with my Wahoo. There's a calibration step which was also straightforward when following the setup instructions. On my second ride the power meter stopped sending data to my computer. I checked the battery (it was good) and it worked fine again upon reinstall without problems since. Hard to say if it was an electronic issue or something simple like the battery door being loose. On a later ride the battery door and battery did fall off. Mind you this is on a gravel bike where I'm sometimes riding through brush, but it was frustrating. $15 + shipping later I had a replacement, I cleaned the caked mud out of the battery holder and it was working again. Will you encounter similar problems? Hard to say. When the power meter works it's a great value.
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