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4iiii power meters are an accurate, precise, and reliable way to measure the effort you put into the pedals. Developed with pro cycling teams, 4iiii power meters employ in-built strain gauges to measure effort exertion and power transfer to help you ride further, faster and harder. So, whether you need a 4iiii single-sided power meter for your next sportive or a dual-sided 4iiii power meter for road racing, shop 4iiii power meters at ProBikeKit USA.

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