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Shimano Dura Ace R9100 Power Meter Crankset

  (1 customer reviews)
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Peloton proven power.

Pioneer was the first to create a dual-leg power meter, and with the help of the Belkin's professional race team they feel confident this is the best power meter on the market. With 2 12-point strain gauges (1 per leg) only Pioneer can offer you 360-degrees of data on your power output and pedal stroke. Now Pioneer is bringing their Tour-tested power meter to Shimano's Dura Ace 9100 crankset.

What sets Pioneer apart from other power meters are the dual strain gauges (one for each crank) that measure force vectors every 30° of crank rotation. When paired with one of Pioneer's own cycling computers opens up an even wider array of torque vector analysis. This information is analyzed and displayed in real-time to show you not only how much power you're putting out but also, by utilizing the vector data, how efficient you're being with your power. The strain gauges transmit those data to any ANT+ cycling computer, so you won't be left out if you're already using a different head unit. The person who crosses the finish line first isn't necessarily the strongest, but the smartest.

Shimano's Dura Ace 9100 crankset's stretched width may be the first thing you notice, but that's not all that this beauty holds. Its design is the result of stress-test data, resulting in increased stiffness that's 7 g lighter overall compared to the previous generation Dura Ace crank. Hollow construction technologies are still prominent, with Hollowtech II arms and Hollowglide chainrings in a variety of rider-tuned gearing options. Altered tooth profiling ensures re-positioning of the inner chainring and superior performance with modern short-stay geometries, 135 mm rear-spaced frames, and wider-range cassettes.

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Good choice for an all Shimano Group
by Anonymous
Competitive Racer
Bay Area CA
1 of 1 customers found this review helpful.

I haven't had the meter for very long. However, I've been using power meters for training and racing for 17 years. I needed a power meter for my new Trek Emonda with a BB90 - choices were limited so decided on the pioneer. Set up was easy - best advice is to watch the Pioneer YouTube video on how to set up a ANT meter with the Pioneer dual leg power meter. Pairing and calibration to my Garmin 520 was very easy following the instructions in the YouTube video. The down side (why I give it four stars) is you must use the pioneer supplied magnets for cadence and have to stick them on the frame. Most other power meters have accelerometers so there is no need for magnets - my biggest complaint. The Pioneer Power Crank (Shimano 9100 with strain gauges and pioneer electronics installed) is not much heavier than the stock 9100 crank. Pairs nicely with the Garmin 520 so no learning curve with a new head etc.. You need 2 type 2032 batteries for each side of the crank. So far the meter seems accurate and is within accuracy of my Quarq and power2max meters. I prefer Quarq but they don't have a BB90 that would fit my Emonda. The Pioneer is a good alternative.

Reviewed 8/31/2017
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