The Pioneer Shimano Ultegra R8000 Dual Leg Power Meter Crankset combines innovative force-measurement technology with Shimano's Hollowtech II road crank to make a superior component for both training and racing. At the core of Pioneer's Power Meter System are dual strain gauges (one for each crankarm) that measure force vectors every 30° of crank rotation. This means 12 points of measurement for each leg, every pedal stroke, and when used in combination with Pioneer's Touchscreen Cycle-Computer, the information is used to display real-time pedaling efficiency to show not only how much power the rider outputs, but how much of it is effectively used or is merely wasted. When used with any other ANT+ capable cyclo-computer, power numbers are available according to the features of the paired computer.
The Pioneer Power Meter System adds just 64 g to the weight of an Ultegra R8000 crankset for a total claimed weight of 853 g. Estimated operating time is 180 hours on two CR2032 batteries. Available in multiple crank lengths and chainring options.
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by cycling enthusiast
3 of 3 customers found this review helpful.
Works well out of the box
Power meter works well. As a comparison, I have a Watteam PowerBeat on my other bike. Nice not to need to charge as often, or to spend the time to calibrate the meter. The Pioneer wakes up quickly, and the Garmin recognizes the meter over ANT within a few seconds, as expected.
Appreciate that the power meter comes configured correctly out of the box. For those needing to use the power meter in other ways, such as splitting it across two bikes, or updating firmware in the months to come, you'll need the Pioneer head unit, or send it in to be reconfigured.
The Powerbeat power meter sits on the edge of the crank arms, so I was not prepared for clearance issues on my Emonda 2018 frame. I had to add a 1mm spacer to ensure clearance under stress. Make sure to check Pioneer's web site for frame compatibility. Most frame sets should work. Pioneer support indicated the supplied magnets are ONLY for use when paired with the Pioneer head unit on this model power meter for greater display accuracy with proprietary features. They indicated the magnets are not helpful for cadence accuracy for other head units.
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