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Bicycle sprocket tooth with a shift assist radius greater than a reference tooth radius
Bicycle sprocket tooth with a shift assist radius greater than a reference tooth radius
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机译:变速辅助半径大于参考齿半径的自行车链轮齿
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摘要
A bicycle sprocket comprises a sprocket body having a first side surface and a second side surface, a plurality of sprocket teeth extending radially outwardly from a root portion of the sprocket body, and a shift assist recess formed in the root portion below a first sprocket tooth at the first side surface of the sprocket body. A radially outermost surface of a second sprocket tooth defines a reference tooth radius, and a radially outermost surface of a third sprocket tooth defines a shift assist tooth radius. The radially outermost surface of the third sprocket tooth has a convex shape, and the shift assist tooth radius is greater than the reference tooth radius.
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