The WTB Byway RS 50 is the pure-speed option in WTB&';s new wide-gravel family. A slick centerline keeps it quick on pavement and hardpack, while low-profile transition and shoulder knobs add predictable grip when the surface loosens or the bike is leaned over. The 50 mm casing adds support and comfort without giving up the efficient feel riders want from a gravel race tire. WTB builds the Byway RS around a supple 120 TPI TCS Light casing, Dual DNA rubber, and SG2 bead-to-bead puncture protection. 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 gravel racing, hardpack, and mixed pavement Tread: Slick centerline with low-profile transition and shoulder knobs 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 Pavement / Hardpack / Dirt / Gravel ISO Size 50-622 Labeled Size 700 x 50c 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 620 g Optimal Internal Rim Width 25-30 mm GMS 50/48 WTB Byway RS Tires UPC: 714401111301 MPN: W010-1130