Compatible with all shimano hollowtech ii road cranks the stages shimano 105 r7000 power meter replaces your current left side crank arm. Convert your user provided shimano 105 r7000 left crank arm into a stages gen 3 power meter and add power and data to your rides. Zoom 1 1 a discrete and dependable way to measure your outputs when training this non drive side crank gauge keeps note of your power speed and cadence data for on the spot analysis as you prepare yourself for the podium. 
				
			
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