1. Tire tread thukzia nghawng dan .
Pattern a thuk poh leh lei nena inzawmna nei block-a elastic deformation a tam zawk a, chutiang chuan tire elastic hysteresis hloh avanga rolling resistance siam chu a pung zel ang. Pattern thuk zawk hian tire lumna a chhuah tir thei lo va, chuvang chuan tire temperature a sang chak zawk a, a zungte chu hremna na tak avangin a chhe thei a, a tlak awlsam bawk. Too shallow pattern hian a tui dahkhawlna leh tui chhuahna a nghawng mai bakah, "tui skiing" hlauhawm tak a thlen awlsam hle a, light-tread tires tlakchhamna pawh a tifai awlsam a, hei hian a chunga kan sawi tak car performance hi a ti chhe zawk a ni.
2. Pattern chu a thuk lutuk emaw, a light lutuk emaw.
Chuvangin, a thuk lutuk emaw, a thuk lutuk emaw chuan pattern chu a tha lo. Objective law chu hman danah chuan pattern chu a te zawkin a te zawk dawn a ni. Pattern hman tangkai theih nan khawvel ram hrang hrangte chuan tire pattern wear limits chungchangah dan chiang tak an siam a ni. leh die-engrave the tyre wear limit warning mark "" emaw (leh) "twi" tih chu tyre shoulder sir velah hmun engemaw zatah English-in a awm bawk. Pattern block-a convex surface wear distance chu pattern groove hnuai lam thlenga 1.6mm (1/16 inch) vel a nih chuan, mark-a pattern chu a smoothed out a, chuvangin light tread-a horizontal strip tawi tak a rawn lang a, chu chuan tyre thlak hun tur chu driver hnenah a hriattir a ni.