The Tubeless Ready SE4 Team Issue tire offers strength, durability, and fast-rolling efficiency in a super-strong enduro package. Core Strength protection for sidewall reinforcement and fracture-resistant sub-tread make SE4 Trek World Racing's enduro tire of choice on courses that require DH toughness and all-mountain speed. Key features - Excels in loose and rocky conditions - Tubeless Ready (TLR) tire engineered for easy tubeless setup and puncture protection - Core Strength has sidewall and sub-tread protection for lightweight durability