Smartsign "Motorcycle Parking Only" Sign By SmartSign | 12" x 18" 3M Diamond Grade Reflective Aluminum Legend "MOTORCYCLE PARKING ONLY" Lyle signs supplies your sign with radius corners for safety; holes punched for post mounting Lyle Ultimate signs have a 12 year durability Lyle Signs produces signs that exceed industry standards and specifications The temperature range is -40 to 175 degrees F