Designed with the unknown in mind, the Teravail Rutland Tubeless Gravel Tire takes the guess work out of selecting the right tire for the ride. Ramped, tightly spaced center lugs reduce rolling resistance while more aggressive shoulder and transition lugs provide grip in loose conditions. Features: Designed and inspired by experiences riding and racing rolling coarse-gravel routes Tubeless ready for flat prevention, lower-pressure traction and comfort Durable casing protects against abrasion and sharp trail debris Ideal internal rim width is 23mm Specifications: Tire Type: Tubeless (Clincher) Bead: Folding Compound | Casing: Durable TPI (Threads Per Inch): 60 TPI Puncture Protection: Sidewall Inflation: 40 - 70 PSI Color: Black Weight: 482g (700c | 38mm), 555g (650b | 47mm)