![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://images-na.ssl-images-amazon.com/images/I/5199-GeftSL._AC_UL600_SR600,600_.jpg)
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 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/S/aplus-media-library-service-media/c4a8c79d-b81d-4b98-ae13-a647d49a8f58.__CR0,0,600,600_PT0_SX300_V1___.jpg)
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 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._AC_UF1000,1000_QL80_.jpg)
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 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/S/aplus-media-library-service-media/e332bdfb-c9bc-4acd-9fa6-00ec601d4f32.__CR0,0,600,600_PT0_SX300_V1___.jpg)