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adaptive training plans that sync perfectly with your new PRECISION 3+ data
or a cyclist looking to analyze left/right balance to optimize your pedal stroke
The 4iiii Viiiiva is a precision heart rate monitor designed to capture the most accurate picture of your internal physiological effort
offering the ultimate combination of dual-sided accuracy
PRECISION 3 & 3+ Maintenance Kit Kit:PRECISION 3 & 3+ Maintenance Kit adaptive training plans that syncReplacement PRECISION 3 & 3+ Powermeter cap and O ring. Shipping included.
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