A pneumatic radial tire for passenger vehicles that satisfies a defined relationship between sectional width SW and outer diameter OD of the tire, and includes only two circumferential main grooves extending in a tire circumferential direction on a tread contact surface, a barycenter of the…
A two-wheel vehicle tire has a tread portion. The tread portion includes a plurality of grooves. The grooves include crown grooves arranged on a tire equator, middle grooves, and shoulder grooves. Each of the crown grooves is bent in a V-shape so as to be convex to one side in a tire…
When a tire is attached to a rim and set to an internal pressure of 250 kPa or more, a ratio SW/OD of the tire is 0.26 or less in the case where SW of the tire is less than 165 (mm), and SW and OD satisfy a relationship 2.135×SW+282.3≦OD in the case where SW is 165 (mm) or more. The tread rubber…
A pneumatic tire, having in a ground contact surface of a tread a plurality of main grooves extending in the tread circumferential direction and a plurality of land portions demarcated by the main grooves and tread ends, wherein, provided that two land portions adjacent to the central land portion…
This pneumatic tire is provided with a center land section demarcated between a pair of center primary grooves extending in a zig-zag shape at a tread section. The center land section is provided with: one center narrow groove extending contiguously in a zig-zag manner in the peripheral direction…
A tire includes a plurality of tire knobs of various shapes arranged to form contact surfaces configured to touch the ground. The contact surface is the radially outermost surface of each knob which may be formed in a variety of three-dimensional structures such as pyramids, wedges, cones, and…
A pneumatic radial tire for a passenger vehicle has a ratio W/L where W is a cross-sectional width and L is an outer diameter. The tire also has a belt-reinforcing layer having a high rigidity and disposed between a belt and a tread.
A simple method and apparatus for accurately estimating the contact patch shape of a moving tire. The vibration waveforms of a tire (20) with sipe rows (25A, 25B) formed at the respective pitches (P a , P b ) in the left and right shoulder lands (24a, 24b) are detected by an acceleration sensor…
Pneumatic tires for service on heavy vehicles having a belt package with widened belts. The tire (10) includes a belt reinforcing structure or belt package (20) having multiple cut belts (24, 26) of which one of the cut belts (24) has a width approximately equal to the tire footprint. Widening two…
A motor vehicle tire is associated to sensors (6) detecting the size and shape of tire trace on the ground and sending output signals to processing means (8).