It is resistant to bursts with its thick structure. With its toothless and K-shaped pattern, it is fast on smooth hard surfaces such as asphalt etc. Product Features: Model: C1437Use Area: Asphalt / Concrete Etc. Hard GroundSurface: Hard Ground, Raindrop: 26X1,95E.T.R.T.O:53-559Psi: 40-65 Psistoga Entry Date: March 2019