Half the aerodynamic drag of round spokes... unless there's a side wind?
They work until the yaw angle exceeds the stalling angle of attack - at which point, unless you're riding really slowly, you've been blown over by the crosswind anyway.
@gbj_tester started
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They work until the yaw angle exceeds the stalling angle of attack - at which point, unless you're riding really slowly, you've been blown over by the crosswind anyway.