This is a lightly used set of Shimano Dura Ace Cranks. Model FC-R9100 with 172.5mm arm length. These cranks have the Pioneer SGX-CA600 Dual-Sided Power Meter built in. This measures power on both legs independently. Left and Right power is displayed on the computer.The Computer is included to show all the data. The K-edge mount is also included. The USB cable to charge the head unit is included.
The Pioneer computer uses the Pioneer Cyclo-Sphere app for Apple and Android for data synching. You will need to download the app and create an account for that stuff.
There may be other computers that read these strain gauges. You will have to research that. The big 50t ring is very new and only has about 200 miles on it.
The small 34t ring was rarely used. The item "Shimano Dura Ace Crank Set FC-R9100 172.5 50t 34t with Pioneer Power Meter" is in sale since Tuesday, November 30, 2021. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Cranksets".The seller is "gebhardt2" and is located in Rapid City, South Dakota. This item can be shipped to United States.