Castle Rock is a brand of trailer tires produced by Lionshead Specialty Tire & Wheel LLC. Specifically, Castle Rock focuses on creating durable and reliable ST (specialty trailer) tires. These tires are commonly used on recreational vehicles, cargo trailers, boat trailers, and other towable utility units, often as original equipment. Lionshead, the parent company, was established in 1993, and Castle Rock tires are manufactured using premium rubber and nylon chords, designed for challenging road conditions and featuring a modern sidewall design according to SimpleTire.