Dec. 17th is the last day to get your order by Dec. 24th
Shimano FC-R9100-P Dura-Ace Power Meter Crankset 11 Spd 53/39T 165mm Features
Using a powermeter has been a revelation in training over the past 10 or so years. Compared to using a heart rate monitor, wattage as a metric is more specific to the effort and removes many variables that could disrupt proper training on a given ride. Of course, these numbers are only as good as the device they are coming from and knowing the precision that Shimano instills on its premium products, we know the power measurement readings are up to the accuracy that professional cyclists demand. The unit itself is very small with a strain gauge inside the spindle, a couple of sensors on the backside of each crankarm for true dual-sided power reading, and an antenna/charging port sending and receiving Bluetooth LE and ANT+ signals, nestled between two arms of the spider.
Shimano's top-of-the-line road crankset now measures watts
Low-profile sensors clear tight chainstays and BB mounted brakes
ANT+ and Bluetooth LE for transmission and firmware updates
Excellent Hollowglide rings lets you enjoy a full Shimano drivetrain
Spider allows different gearing options and doesn't affect the meter
Shimano brings electronic expertise to an excellent crankset so you can enjoy an all Dura-Ace affair.
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