Double Butted

Spoke Shape - Double Butted 2

A spoke that is thinner in the middle than it is on either end so the gauge varies.
Spokes undergo more stress at the head and thread areas so if they are thicker in those regions they should theoretically be stronger. By using a smaller diameter in the middle of the spoke where the strength isn't as critical some weight savings can be had.

For example: a double butted spoke could measure: 14g/15g/14g or 2.0/1.8/2.0mm (Head/Middle/Thread)


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