How to improve the performance of both the road surface of the dry and wet of motorcycles equipped with a tire of the pair and the rear tire air pressure front and a pair of two-wheeled vehicle

摘要

Pneumatic tire pair (1, 101) comprises (101) a front tire to be mounted respectively on the front and rear wheels of a motorcycle rear tire (1), the tread band of the front tire (1) (12): a) extending in the (X-X) equatorial plane of (1) the central zone which extends on both sides the equatorial plane of the (X-X) front tire of (E) at least within the circumferential groove and one (13); b) the tread band (12 has (14a) end axially inside in (E) in the central zone), towards (F, to G) axially opposite shoulder zones of the tread band external central zone (E) of the central zone ( crossing a plurality of grooves extending alternately from E) A (14), at least the transverse grooves of several (14) has connected circumferential groove (13), and a transverse groove; further rear tire (101) the tread band (12), the region defining a sea / land ratio of substantially zero central zone (12) to (E) in the tread band extending on both sides of the (X-X) equatorial plane rear tire (101) the method comprising, with a region having a width of from about 5% to about 30% of the axial development part of the tread band (12). Pneumatic tire of such a pair (1,101) causes advantageously improved traction performance characteristics, and km yield in both the road surface of the wet and dry tire.