Small, square knobs deliver consistent bite into a variety of terrain, while the ample spaces between them prevent packing up when conditions become wet and muddy Truly all-season in nature, its 42mm width makes it a set-it-and-forget-it gravel tire for endlessly undulating roads through all varieties of weather Light - Lighter weight compound conforms to trail objects while still providing a happy balance between low rotational weight and reliability FR - Fast Rolling, with WTB`s Dual DNA rubber compound that optimizes efficiency, traction and durability, A firm, long-wearing centerline tread with softer side knobs TCS - WTB`s Tubeless Compatible System, sealant based tubeless system with improved bead shape Tubeless 650Bx42 584 TBLS - Fold Bk/Skn 75 440 60 TCS/LIGHT/FR NoUPC/EAN/GTIN: 714401106826