LUFTREIFEN FUER MOTORRAEDER.

摘要

A tyre for a motorcycle having a tread (2) provided with blocks (B1, B2, B3) in at least three axially spaced rows (R1, R2, & R3) a central row (R1) consisting of central blocks (B1) arranged circumferentially around the tyre equator (CO) and two lateral rows (R2 & R3) each consisting of lateral blocks arranged circumferentially one on each side of the tyre equator (CO) characterised in that the ratio of the circumferential length (LB1, LB2 & LB3) of each of the centre (B1) and lateral blocks (B2, B3) to the axial width (WB1, WB2, WB3) thereof is more than 1.0 and less than 1.6, and each block (B1, B2, B3) has a pair of axially extending and circumferentially opposed edges (B1f, B2f, B3f, B1r, B2r & B3r), the lateral blocks (B2 & B3) in each lateral row (R2 & R3) are disposed one between the central blocks (B1) in the circumferential direction of the tyre,the axially adjacent lateral blocks (B2, B3) are disposed in the circumferential direction of the tyre so that each of the leading and trailing edges (B2f, B2r) of one lateral block (B2) are circumferentially displaced from the leading and trailing edges (B3f, B3r) of the other lateral block (B3) by a length (Rf, Rr) of 0.15 to 0.5 times the circumferential length of the lateral blocks, the circumferential distance (Sf, Sr) from the central block to one of the axially adjacent lateral blocks more closely located thereto is more than 8mm and less than 15mm and the sea/land ratio (AS/AL) in the ground contacting region under normal condition is more than 0.3 and less than 0.5.