Cyclists must obey all traffic signals, stop signs, and lane controls.
Running red lights or stop signs is a citable offense in Key West.
Riding against traffic is illegal and a major cause of crashes.
Always travel in the same direction as motor vehicles.
Riding a bicycle on the sidewalk of Duval Street is prohibited by city ordinance.
This is actively enforced, especially in Old Town.
Pedestrians have the right of way in crosswalks, sidewalks, and shared paths.
Cyclists must slow, yield, or dismount where required.
From sunset to sunrise:
White front light visible from at least 500 feet
Red rear reflector or red light visible from at least 600 feet
This is one of the most common enforcement points.
Stay to the right unless:
Passing
Avoiding hazards (parked cars, potholes, doors)
Preparing for a left turn
Lane is too narrow to share safely (then you may take the lane)
Outside of Duval and posted areas, sidewalk riding is typically allowed but:
You must yield to pedestrians
You should ride slowly and cautiously
No doubling up unless the bike is built for it.
Kids need proper seats or trailers.
Riding without at least one hand on the handlebars is illegal.
No stunts, no texting while riding.
Helmets are mandatory for riders under 16 under Florida law.
Not required for adults, but strongly encouraged due to narrow streets and tourist traffic.
Slow cyclists should allow cars to pass when safe.
Be predictable — sudden swerves cause accidents.
Hand signals are required when reasonably possible.
Especially important in high-traffic tourist areas.