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  • Pioneer - Dura-Ace R9100 Powermeter Crankset - Black
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  • Pioneer - Dura-Ace R9100 Powermeter Crankset - Black

Pioneer Dura-Ace R9100 Powermeter Crankset

sale $1,024.95 $1,299.9921% Off

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    • Black, 165mm, 50/34
      sale $1,024.95
    • Black, 170mm, 50/34
      sale $1,024.95
    • Black, 172.5mm, 50/34
      sale $1,024.95
    • Black, 175mm, 50/34
      sale $1,024.95
    • Black, 170mm, 52/36
      sale $1,024.95
    • Black, 172.5mm, 52/36
      sale $1,024.95
    • Black, 175mm, 52/36
      sale $1,024.95
    • Black, 165mm, 53/39
      sale $1,024.95
    • Black, 170mm, 53/39
      sale $1,024.95
    • Black, 175mm, 53/39
      sale $1,024.95

    2 Reviews


    Dial in your training.

    Proven in the peloton and available with Shimano's flagship new flagship drivetrain, the Pioneer Dura-Ace R9100 Powermeter Crankset adds data collection to your training, helps you analyze every ride, and doesn't compromise the drivetrain for those of us who appreciate a build where every component is the same make and model. Its sleek design integrates cleanly into the crankset and features dual-leg strain gauges for independent pedal data and other detailed metrics. It transmits those data to any ANT+ cycling computer, and pairing it with one of Pioneer's own cycling computers opens up an even wider world of torque vector analysis for those of us who want to dig into the really nitty gritty minutiae in search of marginal gains and a few extra watts.

    The system measures pedaling force, direction, and overall efficiency via dual strain gauges bonded to the crank arms. Either sensor unit captures 12 points of rotation at 30-degree intervals by measuring minute changes in the shape of the crank caused when force is applied while pedaling. From this, force is calculated in both the direction of rotation and the radial direction. The combination of these two force components indicates the direction in which the total force is being applied, which is shown using the system's force vectors. Also, a magnet ring that attaches to the bottom bracket measures the position of the crank, allowing precise display of the force vectors at every 30-degree interval throughout rotation.

    The force vectors for one full rotation are then wirelessly transmitted to any ANT+ head unit via the transmitter module bolted in the crankset's spider. The information centers around pedaling efficiency, giving riders the ability to target inefficiencies for improvement in training and racing. When pedaling efficiency is high, most of the rider's power is being used to rotate the pedals. So, the force measured in the direction of rotation at each of the 12 points is combined to give the total power output for that rotation. This system is more immune to the inaccuracies found in other powermeters that don't gather information at 12 force vectors.

    This data is then stored in long file form that can be accessed and analyzed after the ride. You're able to upload your log data to Pioneer's Cyclo-Sphere website, which lets you analyze left and right side pedaling efficiency, power, and force vectors, among many other types of data displayed in easy-to-understand graphs and numerical displays.

    This system is paired with is Shimano's new FC-9100 Dura-Ace crankset, boasting a few subtle yet deliberate changes compared to its FC-9000 predecessor. It retains its proven four-arm design, and widens the crankarm to move the chainline out by 0.5mm. This may sound imperceptible, but it's just enough to give the crankset broader compatibility with shorter chainstays and the growing number of road bikes built for disc brakes. Shimano also slightly reshaped the chainrings' gear teeth profile to adapt it to the gearing on disc brake-equipped race bikes. As with the 9000 model, this crankset sees the continuation of Shimano's Hollowtech II construction. Over the past few iterations of Dura-Ace, this manufacturing methodology has played an integral role in attaining weight reduction without sacrificing Dura-Ace's superior stiffness.

    • A crank-based power meter with massive data capability
    • Compatible with ANT+ cycling computers
    • Uploads data via Wi-Fi to Pioneer CycloSphere software
    • Provides torque vector data when paired with Pioneer computers
    • Item #PNR000I

    Tech Specs

    Arm Material
    Arm Length
    165 mm, 170 mm, 172.5 mm, 175 mm
    Chainring Sizes
    [165mm, 170mm, 172.5mm, 175mm arm length] 50 / 34 t, [170mm, 172.5mm, 175mm arm length] 52 / 36 t, [165mm, 170mm, 172.5mm, 175mm arm length] 53 / 39 t
    Compatible Components
    Shimano Dura-Ace 9100, ANT+
    Claimed Weight
    [crankset and sensors] 700 g
    Recommended Use
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    2nd pioneer now

    • Familiarity: I've put it through the wringer

    After riding a DA Pioneer set up for the last 2 years I really wanted to take a look around before deciding which power system to put on my new bike. It didn't take long and I was back on the new 9100 DA pioneer crank. I even went with it although the rest of my system is Etap, which it works with just great btw. Accuracy is excellent, reliability has been great, and it's been easy to use. I run it with the Pioneer computer and have been plenty happy with that as well. The DA cranks are super stiff and still my favorite out there. I know there are a few cranks that will save you a couple grams at best but I take the Shimano performance over all. I've had a couple months now on the 9100 and have been super happy with it, no complaints at all. I've put the Pioneer system through rain and inclement weather and not run into any issues. If you have any questions on the Pioneer power meter feel free to get in touch with me directly.

    Is there enough left side chainstay clearance to be used with an S Works Venge Vias?