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gear ratio

Profile’s Tech Tip #7: How many teeth do you need?

How many teeth do you need? On a sprocket that is. In 2003, Profile engineered a cassette driver that allowed you to drop from our lowest cog (12 tooth) down to a one-piece, 9 tooth. In doing so, the standard 36-13, sprocket/cog gear ratio dropped quickly to a 25/9. And […]

February 17, 2017

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COVID-19 UPDATE

We are taking precautions to protect our employees and follow CDC and state guidelines. In the meantime, our machine shop is still running, we're here to assist you and we'll be shipping product to help support bike shops during this difficult time.