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Yellow diamond with a black border showing a black silhouette of a bicycle with two wavy skid trails behind its wheels.
MUTCD
W8-10
Category
warning
Color
yellow
Shape
diamond

Slippery When Wet (Bicycle)

The road or path surface becomes slippery when wet; bicyclists should slow and avoid hard braking.

Used on bikeways or shared roadways, this warning tells riders the surface ahead loses traction in the rain, especially on painted markings, manhole covers, metal grates, and wooden bridge decks. Reduce speed, brake gently, and keep the bike upright through the area.

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