The WTB Course 52 sits in the middle of WTB&';s new wide-gravel range, balancing speed with more traction for mixed surfaces. Its tightly grouped center tread keeps rolling resistance in check, while the round profile and more pronounced transition and shoulder knobs stay predictable through loose-over-hard corners and changing gravel conditions. A supple 120 TPI TCS Light casing, Dual DNA rubber, and SG2 bead-to-bead puncture protection give the Course a practical mix of ride quality, grip, and durability. Patent-pending trip strips and vortex generators developed with Stromm manage airflow around the wheel-and-tire system to help reduce drag at higher speeds. The profile is optimized around a 28 mm internal rim, with a recommended range of 25-30 mm. Best For: Fast, varied gravel where rolling speed and dependable traction both matter Tread: Tightly grouped center tread with a round, versatile cornering profile Casing: TCS Light/Fast Rolling, 120 TPI Protection: SG2 bead-to-bead puncture protection Compound: Dual DNA Rim Fit: Optimized around a 28 mm internal rim Aero Features: Patent-pending Stromm trip strips and vortex generators Item Specifications Color Tan Defined Color Tan Intended Use Adventure Road / Gravel Conditions Hardpack / Loose-Over-Hard / Dirt / Gravel ISO Size 52-622 Labeled Size 700 x 52c Tire Type Tubeless Ready Clincher Tire Bead Folding Casing TCS Light/Fast Rolling TPI 120 Compound Dual DNA Puncture Protection SG2 bead-to-bead Weight 635 g Optimal Internal Rim Width 25-30 mm GMS 52/50 WTB Course Tires UPC: 714401111325 MPN: W010-1132