Power Meter City - The 4iiii PRECISION PRO Shimano DURA-ACE 9100 Dual-Sided Crankset combines 4iiii's patent pending 3-D tri-axial strain gauge technology with Shimano's top-end DURA-ACE 9100 crankset. The 4iiii PRECISION DA
4iiii Precision 3 Shimano Ultegra R8000 52/36 Power Sensor Crankset (Left Hand Crank) Black | Alltricks.com
![Amazon.com: 4iiii Precision Powermeter Left Side | Shimano Ultegra R8000 | 172.5mm | Measures Each Pedal Stroke with 3 Strain Gauges : Sports & Outdoors Amazon.com: 4iiii Precision Powermeter Left Side | Shimano Ultegra R8000 | 172.5mm | Measures Each Pedal Stroke with 3 Strain Gauges : Sports & Outdoors](https://m.media-amazon.com/images/I/5199-GeftSL.jpg)
Amazon.com: 4iiii Precision Powermeter Left Side | Shimano Ultegra R8000 | 172.5mm | Measures Each Pedal Stroke with 3 Strain Gauges : Sports & Outdoors
![4iiii Left-Side PRECISION 3 Powermeter, Shimano Dura-Ace FC-9100, 170mm - Forza Performance Bike Shop 4iiii Left-Side PRECISION 3 Powermeter, Shimano Dura-Ace FC-9100, 170mm - Forza Performance Bike Shop](https://cdn.shoplightspeed.com/shops/665221/files/49278218/1652x1652x2/4iiii-4iiii-left-side-precision-3-powermeter-shima.jpg)