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Amazon.com: 4iiii Precision Powermeter Left Side | Shimano FC-M9100-NDS | 175mm | Measures Each Pedal Stroke with 3 Strain Gauges : Sports & Outdoors
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Amazon.com : 4iiii Precision Powermeter Left Side | Shimano 105-R7000 | 170mm | Measures Each Pedal Stroke with 3D Strain Gauges : Sports & Outdoors
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