Tread Block Optimization for Tires

Tire tread pattern with enhanced 3-level sipe geometry that improves dry performance while maintaining wet/snow traction throughout the tire's life. The sipe design has two key features: interference profiles and contact surfaces. The interference profiles are steps within the sipe that prevent full contact between adjacent sipe edges when the tire is new. This reduces stiffness and improves grip on wet/snow. As the sipe wears, the steps wear down allowing full contact for improved dry performance without sacrificing wet/snow traction. The contact surfaces are areas within the sipe that are meant to contact the ground during rolling. These provide additional voids in the tread for improved wet/snow grip as the sipe wears. The combination of interference profiles and contact surfaces allows optimized performance on both dry and wet/snow surfaces by compensating for void reduction during tire wear.

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A tread design for winter tires that improves grip and handling on snow, ice, and bare road. The tread has a specific block arrangement with a unique shape and layout that enhances snow traction, provides better steering response, and reduces aquaplaning. The blocks have serrated edges, curved contours, and a zigzag pattern that grips and bites into snow and ice, while also providing channeling for water evacuation. The blocks are also arranged in a specific configuration to maximize contact patch size and pressure distribution on dry roads. This tread design improves winter tire performance without sacrificing summer tire characteristics.

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A tire with improved snow traction compared to traditional tires. The tire has blocks with recesses extending across the ground contacting surface and the sidewall. The recesses have triangular openings on both the ground and sidewall surfaces. The sidewall opening terminates before reaching the groove bottom. This unique recess design allows snow to pack into the triangular openings and compact onto the ground contacting surface, enhancing traction on snow.

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Tire tread pattern with reduced noise without compromising on-snow performance. The tread has inner and outer circumferential main grooves that sandwich the tire equator. In between, there are intermediate land portions and center land. This configuration reduces tire noise compared to conventional treads with a single wide centerland. The inner main grooves provide snow traction while the intermediate land portions provide noise damping.

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Tire with optimized snow performance and low rolling resistance by using specific narrow groove patterns in the shoulder and center regions. The shoulder has alternating linear/arc shaped narrow grooves, while the center has an angled narrow groove connected to the main groove and a separate narrow groove that extends circumferentially. This configuration improves snow traction without sacrificing rolling resistance by providing biting edges in the shoulder and center that enhance grip on snow while minimizing voids for reduced rolling resistance.

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A tire tread design that provides good snow performance and steering stability simultaneously. The tread pattern has three-direction intersection points between the grooves that allow compacting snow in multiple directions. These points have bent edges with an optimal angle range of 40-85 degrees. This design ensures strong snow shear force without sacrificing block rigidity for steering stability.

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Pneumatic tire design with improved uneven wear resistance and wet traction. The tire has specific features in the shoulder and center regions. The center land portion has multiple center lug grooves with blocks between them. The middle land portion has multiple middle lug grooves, blocks, a notch on the center groove side of each block, and a middle sipe extending from the notch to the shoulder side. This configuration helps prevent uneven wear and improves wet traction by providing interconnected sipes and lugs that can channel water and provide biting edges.

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A tire design with improved wet steering stability, vehicle external noise resistance, and wear resistance in a balanced manner. The tire has four circumferential main grooves, defining lands, chamfered portions, and inclined grooves. At least one circumferential narrow groove is added in the lands. This configuration provides balanced wet steering stability, noise reduction, and wear resistance. The narrow grooves in the lands improve wet grip, the chamfered portions reduce edge effects, the inclined grooves further reduce noise, and the overall design maintains wear resistance.

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Tire tread design with improved snow and ice traction without sacrificing dry road performance. The tread has sipes and slots with specific angled features. The key edge of the sipe is angled inward at an angle KA, and the chamfer portion is angled at a different angle CA. This configuration provides better snow traction compared to standard sipes, especially during braking or acceleration. The angled edges retain more contact area during braking to improve braking performance.

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Tire tread design with improved snow traction. The tire has a circumferential tread with transverse grooves that have varying depths along their length. The deeper end of the groove is closer to the sidewall and the shallower end is nearer the tire equator. This creates protrusions in the shallower section of the groove. These protrusions provide additional biting edges for snow traction compared to a uniform depth groove. The varying depth design allows the protrusions to engage snow without compromising snow shedding performance in other conditions.

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The contact characteristics of radial tires are crucial for optimizing stress distribution, deformation, and wear. non-uniform behavior induced by complex tread patterns remains under-explored in existing tire mechanics research. Taking the 205/50R17 as a representative case, reverse modeling approach was employed to develop an accurate finite element model incorporating intricate pattern features. fidelity proposed simulation confirmed utilizing high-precision contour profiling techniques. impact diverse usage conditions design parameters on outer profile ground under static free-rolling states analyzed. Experimental observations demonstrate that increased inflation pressure leads proportional decrease area. Under incremental vertical loading, patch develops progressively into saddle-shaped geometry featuring elevated shoulder regions recessed central zone. Increasing belt angle compromises its hoop-stiffening function, thereby inducing elliptical geometry. Larger diameters compromise length symmetry regions. Variation thickness at 85% width results significant difference between le... Read More

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A pneumatic tire with improved wet and snow performance by optimizing the tread pattern. The tire has alternating pairs of asymmetrically inclined main grooves extending from the ground contact edge to the equator. These form staggered land portions extending from the equator to the ground. The innermost blocks in each land have notches opening to the main groove connections, improving drainage. This pattern provides enhanced snow traction, braking, and wet grip compared to traditional symmetrical treads.

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A tire design with improved wet braking performance and steering stability while reducing rolling resistance compared to traditional tires. The tire has circumferential blocks separated by circumferential grooves. The blocks have chamfered edges at the inner and outer ends of the lateral grooves. These chamfered edges provide drainage channels for water evacuation during braking. The chamfer angles and relative sizes of the chamfers optimize wet performance and steering stability without excessive rolling resistance.

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Tire tread design that maintains ride comfort and wet performance as the tread wears. The tread has a main groove with recessed sections that push water away from the tire contact patch. The recessed sections have a specific ratio of depth to groove width when worn versus new. The ratio is 1.05-1.40 for sea ratio and 0.95-1.04 for hardness ratio. This prevents excessive wear and keeps ride comfort and grip as the tread wears. The recessed sections are alternating on the groove walls. The tread also has a specific rubber composition that changes less with aging.

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Heavy duty pneumatic tire with improved wet traction and wear resistance. The tire has a zigzagging crown circumferential groove and a zigzagging shoulder circumferential groove. Adjacent crown lateral grooves connect the crowns to shoulders. The crown blocks have smaller sub-grooves with fewer, shorter transverse grooves compared to the wider lateral grooves. This configuration provides enhanced wet traction from the zigzagging main grooves, while the smaller sub-grooves prevent excessive wear.

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Motorcycle tire with tread design to reduce wear step formation. The tire has a curved tread profile. The land ratio, or width-to-height ratio, of each zone between the tread edges and ground contacting surface is specified. This prevents excessive wear step formation at the edges of the tread by optimizing the wear distribution. The curved tread shape and controlled land ratios suppress the step wear that can occur in the center of the tread due to its shape.

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Tire with improved braking performance and reduced noise compared to conventional tires with shoulder sipes. The tire has a tread with specific sipe configurations on the shoulder region. The sipe design involves chamfered edges on the shoulder sipes. During braking or cornering, the chamfered edges prevent the sipe edges from getting pulled inside the land region and lifting the surface, allowing better grip and braking performance compared to conventional sipes. The chamfered edges also reduce the noise generated by the sipes contacting the road. The tire also has sipes only on the ground contacting surface of the first shoulder land region between the edge and tread, which further improves braking performance by preventing lifting of the land region.

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A tire with grooves that improve ride comfort and steering stability. The tire has a tread with grooves that have widening sections. The widening sections have an inner portion that is narrower than the outer portion. This design allows the inner portion to flex more than the outer portion when the tire is loaded, providing better steering stability. The wider outer portion prevents the inner portion from collapsing too much under load. The widening sections also have curved surfaces that prevent the inner and outer walls from touching when loaded. This prevents stiffness increases. The length of the inner portion is at least 15% of the groove depth.

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Pneumatic vehicle tires with improved wet grip and better transmission of tractive force as the tread wears. The tires have treads with profile ribs having sipes that extend parallel to each other. The depth of the main portion of each sipe is less than the depth of the edge portion that leads into the cavity between the rib and groove. This configuration allows good wet grip as the depth of the main sipe portion reduces with wear, while still maintaining stiffness from the wider cavity portion.

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Tire tread for heavy construction vehicles that improves grip, especially on muddy terrain, while also increasing wear resistance. The tread has blocks with concave contact faces and a distribution of radial heights between the inner and outer portions that allows better penetration and anchoring. The concave contact faces have at least three pairs of sides forming angles greater than 180 degrees. This shape provides better grip and traction compared to convex contact faces. The radial height of the outer penetration portion is 0.1-0.6 of the total block height.

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Pneumatic tire design that improves both wet and dry steering stability without compromising one over the other. The tire has outer side profiles with multiple curved lines of different shapes between the tire edges. This reduces the difference in ground contact pressure between the edges and center. This balances wet steering benefit from better drainage with dry steering by distributing force more evenly. The inner side profile can have 1 or more curved lines.

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Pneumatic tire with improved grip and durability at high speeds. The tire has a tread with at least two rubber compounds with different thermal conductivities in the ground contacting surface. This allows efficient heat dissipation during high-speed running to prevent excessive heat buildup. The tire also has specific dimensions and groove geometry to further enhance grip and durability.

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Pneumatic vehicle tire with improved cooling and stone trapping resistance in the shoulder region. The tire has sidewall and tread with a shoulder-side profile rib containing depressions. The depression openings are elongated rectangular or trapezoidal, with angled end flanks and a base that transitions from inner base to outer base to a convex middle base. The depression length is 30-50% of the rib width. This shape provides better cooling by maximizing surface area and stone trapping resistance by preventing stone retention. The zigzag groove shape and depression placement beside bend inner sides further improves rigidity and cooling.

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The prediction of tire rolling resistance is importance in both academic and engineering. Classic computational methods are complexity low efficiency. This paper proposes a method based on cumulative changes strain energy density to calculate resistance. Obtain the stress stains states various components by Finite Element Analysis (FEA), apply Karmals formula for computation changing density. proposed achieves good tendency between measurement results. Moreover, efficiency reduced 1/12 that classic methods. can be used complex simplified tread patterns tires predicting.

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A tire design with improved braking performance on dry roads without compromising wet grip and noise levels. The tire has a tread with multiple circumferential grooves separating land portions. The land portions each have sipes that communicate with the circumferential grooves. The sipes have widened sections near the outer edge. One unique feature is that the widened section of the shoulder sipe overlaps the widened section of the middle sipe in the tread view. This improves rigidity while reducing noise. The shoulder sipe also has an angled section toward the outer edge. The depth of the shoulder sipe widening is less than the middle sipe widening. This asymmetry reduces edge deformation and shearing during braking.

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Pneumatic tire with improved wet grip and noise reduction compared to conventional tires. The tire has a tread design with a specific pattern layout and feature sizes. The tread has an outer main circumferential groove extending around the tire circumference. The main groove has multiple circumferential main grooves spaced apart by circumferential land portions. The tread also has multiple lateral grooves extending between adjacent circumferential main grooves. The lateral grooves have multiple lateral land portions between them. The main grooves have a maximum depth greater than the lateral grooves. The lateral grooves have a maximum width greater than the circumferential main grooves. The circumferential main grooves have a maximum width greater than the lateral land portions. This tread layout with specific dimension relationships improves wet grip and steering stability while also reducing noise compared to conventional tires with different tread patterns.

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Tire design with improved ride comfort and noise performance. The tire has a tread with specific width ratios between the shoulder, middle, and crown land portions. The shoulder land portions have wider widths relative to the middle and crown land portions. This uneven width distribution reduces uneven ground contact pressure and improves grip. It also prevents pitch sounds from overlapping and improves noise. The tire also has sipes arranged optimally in the crown land portion for performance balance.

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A tire with a tread pattern that improves wet performance while reducing noise compared to conventional tires. The tread has sipes in the middle regions instead of lug grooves, but chamfered surfaces extend further circumferentially than widthways. This provides more edge contact for grip, longer chamfered edges for drainage, and shorter chamfered edges for noise reduction. The different length chamfered edges balance wet traction and noise suppression.

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Tire tread design for heavy truck tires that reduces aggression damage and irregular wear on the shoulders without compromising wear rate and traction. The tread has sipes in the shoulder ribs of long-haul truck tires to improve wear rate and traction, without triggering abnormal wear like irregular wear and aggression damage. The sipes are partial-depth and transverse, rather than full-width and transverse. This allows the benefits of sipes without the issues of full-width sipes.

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Tire with improved lateral grip on snow-covered roads without compromising dry grip. The tire has a tread pattern with longitudinal sipes aligned with the edges of the tread blocks. These sipes are narrow (less than 2mm wide) and deep (greater than 1mm) to bite into snow. They also close under load to maintain stiffness. The sipe angle aligns with the block to prevent deformation. The sipe density balances grip and noise. The tread material is winter-friendly to maintain flexibility on cold roads.

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An all-terrain off-road tire with a unique tread pattern that provides improved traction on uneven surfaces. The tread has a central section with a longitudinal block flanked by symmetrically arranged pentagonal blocks. The central section also has alternating V-shaped and inverted V-shaped blocks. The tire also has two sets of side sections with symmetrically arranged blocks. This pattern provides a connected interlocking tread that grips and sheds debris for better off-road performance.

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Vehicle tire tread pattern with improved puncture resistance and traction on curved roads. The tread has shallow longitudinal grooves, zigzag main grooves, and transverse grooves. The shallow grooves are between the main grooves. This configuration prevents bottom cracking in the shallow grooves while still allowing puncture protection in the deeper main grooves. It also improves traction on curved roads by having zigzag main grooves angled 10-30 degrees to the tire circumference.

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CUV tire with improved wet traction, ride comfort, and handling. The tread has a pattern with continuously distributed longitudinal grooves extending between the tread blocks. This provides better wet traction by increasing water evacuation, while maintaining handling and ride comfort by avoiding large gaps between the blocks.

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Asymmetric tire pattern for electric vehicles that balances braking, grip, stability and wear on both dry and wet roads. The pattern has optimized fine grooves on the blocks to improve performance for electric vehicles. The grooves are arranged differently on the inner and outer tread regions. The inner tread has more pitches for wet grip, while the outer tread has fewer pitches for quieter ride and stability. This balances wet performance, comfort, stability and wear on both dry and wet roads.

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A tread pattern design for all-steel load tubeless radial tires that provides good traction, wear resistance, and stone and water ejection performance. The pattern consists of nine equal-part segments with alternating hexagonal and pentagonal blocks in the center and sides, separated by longitudinal and transverse grooves. The transverse grooves have protruding blocks to improve stone and water ejection. This deep groove mixed pattern provides good drivability and wear resistance.

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A heavy-duty tire design with integrated anti-skid features to prevent stone trapping and damage. The tire tread has a center crown section with inner anti-skid grooves, and outer shoulder sections with outer anti-skid grooves. This replaces the traditional separate anti-skid blocks. The integrated anti-skid grooves reduce gaps between blocks and prevent stones from getting caught in the tread. The crown and shoulder anti-skid features cooperate to provide grip without stone trapping.

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Tread pattern design for all-steel radial tires that improves traction, braking, wear resistance, heat dissipation, and reduces noise compared to conventional patterns. The tread is divided into nine equal parts with staggered transverse and longitudinal zigzag grooves. The grooves vary in depth and have arched bottoms. Mahjong-shaped blocks with decorative 5-shaped and hook grooves are distributed symmetrically. This asymmetric pattern creates a muffler cavity to reduce noise.

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High-performance snow tire with improved grip on a variety of winter road conditions like snow, ice, and slush. The tire has an alternating pattern block and longitudinal groove layout. The pattern blocks are staggered left to right: left shoulder, left secondary, center, right secondary, right shoulder. Longitudinal grooves are between adjacent blocks. This configuration allows better snow and slush evacuation compared to traditional snow tire layouts. The alternating block and groove sequence improves traction on packed snow and slush, while the staggered blocks aid in snow shedding.

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All-season tire tread pattern that provides good performance in wet, dry, snow and ice conditions. The tread has an intermediate block between shoulder blocks, longitudinal auxiliary grooves connecting them, and central main grooves that stagger left and right in the intermediate block. This configuration improves traction, handling, and snow/ice grip compared to conventional all-season treads. The staggered central grooves in the intermediate block provide better wet and dry performance, while the auxiliary grooves connect the shoulder blocks for improved snow and ice traction.

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A snow tire design with a specific pattern configuration to improve grip and braking performance on snow and ice. The tire has distinct left, middle, and right shoulder blocks connected by secondary blocks. The left and right shoulders have zigzag grooves, the middle block has an oblique groove, and the secondary blocks have oblique grooves. All blocks have transverse curved steel sheets. This pattern configuration provides enhanced grip and braking force on snow and ice compared to traditional snow tire patterns. It reduces potential safety hazards like sideslip.

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A tire tread pattern design for all-steel radial tires that improves wear resistance, traction, and mileage compared to conventional patterns. The tread has a central horseshoe-shaped main block flanked by hexagonal secondary blocks. The secondary blocks interlock between the transverse grooves. This pattern configuration provides better wear distribution, prevents voids, and enhances grip compared to conventional patterns.

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An SUV tire pattern with improved traction, steering, and handling on wet and snowy roads while maintaining stability and longevity. The pattern has multiple block and groove features arranged in specific layouts on the inner, middle, and outer tread areas. This configuration enhances contact area, rigidity, drainage, and controllability compared to traditional tire patterns. The inner shoulder block provides additional biting edges. The inner middle block balances rigidity. The central block is wider for stability. The outer middle block aids steering. The outer shoulder grooves increase drainage. This optimized pattern balances wet/snow performance with overall tire performance.

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Bionic tire tread pattern that improves hydroplaning resistance by mimicking the vein structure of leaves to improve drainage capacity. The tread has modified longitudinal grooves that form a bionic parting area. The main longitudinal grooves connect to secondary grooves via transverse connecting grooves. This parting area resembles the veins in a leaf, allowing faster water evacuation and reducing the risk of hydroplaning. The tread still has through grooves but the modified structure enhances water flow.

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A pneumatic tire design with improved durability and traction performance of the tread blocks, while also providing a unique and visually appealing tread pattern. The tire has a center tread section with trapezoidal blocks arranged in a repeating pattern. Each block is surrounded by two adjacent blocks on three sides, creating a groove-like depression between them. This configuration provides enhanced durability and traction by spreading forces over multiple blocks and preventing cracking or tearing at the edges. It also gives the tire a distinctive blocky look.

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Radial truck tire pattern with improved grip and snow/mud clearing performance for winter conditions. The pattern has a center block surrounded by shoulder blocks, connected by horizontal and vertical grooves. The horizontal first grooves separate the center and shoulder blocks, while the vertical second grooves connect them. This creates a zigzag pattern between the blocks. The broken-line grooves increase the total groove length for better snow/mud disposal. The separated blocks increase contact area for better grip. The pattern is repeated around the tire tread to provide overall grip and snow/mud shedding.

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All-season and winter tire tread patterns with serrated leading and trailing edges for improved traction and grip on snow and ice. The tread has symmetrically arranged block elements in the center and shoulders. The leading edges of some block elements have serrated ramps, while the trailing edges have curved convex domes. These serrated and domed features provide biting edges that enhance traction when the tire is accelerating or decelerating on snow or ice. The serrated leading edges create biting edges as the tire contacts the ground, while the curved trailing edges help the tire release from the surface without sticking.

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Tire pattern design with improved wear resistance and fuel efficiency by optimizing the tread groove layout and features. The tire has five circumferential main grooves that divide the tread into shoulder, central, and crown blocks. The shoulder blocks have annular sidewall grooves, the central block has transverse grooves with alternating steel strips, and the crown blocks also have transverse grooves with alternating steel strips. This pattern balances wear, drainage, and rolling resistance. The shoulder annular grooves enhance wear resistance. The central block's transverse grooves and steel strips provide grip. The crown block's transverse grooves and steel strips reduce rolling resistance. The central groove is variable width/depth for flexibility. The shoulder and crown groove surfaces have cut corners to aid grip. The annular groove has a round bottom and ditch design.

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A wear-resistant tire pattern with optimized groove geometry to improve traction, water drainage, and wear resistance. The pattern has three main grooves around the tire circumference: an outer zigzag groove, a stepped middle groove, and a linear inner groove. The stepped middle groove has a gradual change shape to prevent foreign matter accumulation. The inner middle block has a Z-shaped groove and a U-shaped groove that connect to the inner main groove via a steel sheet. This allows quick water drainage to improve wet traction. The groove geometry balances grip, drainage, and wear properties for improved tire performance.

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A tire pattern for off-road tires that provides good performance on both rough and smooth terrain. The pattern has alternating groups of tread blocks with zigzag transverse grooves running between them. This allows the tire to have deep, aggressive tread blocks for off-road traction while still maintaining enough continuous contact with the ground for good on-road grip. The zigzag grooves connect the blocks and prevent them from separating when turning on hard surfaces.

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A solid tire tread pattern that improves wear resistance, traction, self-cleaning, and handling compared to conventional solid tires. The pattern has a unique layout of shoulders and main grooves that optimize performance on the inside and outside of the tire. The shoulders are connected to the sidewalls and have grooves. The main grooves are longitudinally arranged between the shoulders. This provides better wear, traction, and self-cleaning on the tread, while the optimized shoulders improve handling and cornering on the sidewalls.

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