GIANROI TIRES
Established in 2010, JOYALL (WEIHAI) TIRE CO., LTD. specializes in the R&D, design, manufacturing, and sales of high-performance all-steel truck and bus radial tires.
Established in 2010, JOYALL (WEIHAI) TIRE CO., LTD. specializes in the R&D, design, manufacturing, and sales of high-performance all-steel truck and bus radial tires.
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1. Cooling sipes in the crown center and shoulder reduce heat buildup and enhance tire durability.
2. Reinforced, thickened sidewall protector ribs effectively shield the shoulder and sidewall from scraping and cuts by protruding roadside rocks.
3. Enhanced bead construction with increased bead wire count improves load-bearing capacity. 4. Optimized bead compound formulation improves wire-to-rubber adhesion and increases compound hardness, reducing cracking and plastic deformation damage.
| SIZE | PR | TYPE | LOAD | SS | OVERALL DIAMETER(MM) | SECTION WIDTH | OTD (MM) | SINGLE | SINGLE | DUAL | DUAL | STANDARD RIM | ||||
| INDEX | (MM) | MAX LOAD | MAX PRESSURE | MAX LOAD | MAX PRESSURE | |||||||||||
| kg | Lbs | kPa | PSI | kg | Lbs | kPa | PSI | |||||||||
| 315/80R22.5 | 22 | TL | 161/157 | D | 1080 | 312 | 25 | 4625 | 10190 | 900 | 130 | 4125 | 9090 | 900 | 130 | 9 |
| 12.00R24 | 22 | TT | 162/159 | F | 1240 | 308 | 25 | 4750 | 10470 | 970 | 141 | 4375 | 9650 | 970 | 141 | 8.5 |
| 12.00R20 | 22 | TT | 158/155 | G | 1134 | 302 | 20.3 | 4250 | 9370 | 970 | 141 | 3875 | 8540 | 970 | 141 | 8.5 |
| 295/80R22.5 | 20 | TL | 154/150 | J | 1050 | 295 | 21.0 | 3750 | 8260 | 850 | 123 | 3350 | 7385 | 850 | 123 | 9.00 |
| 12R22.5 | 18 | TL | 152/149 | K | 1096 | 293 | 24.0 | 3550 | 7830 | 930 | 135 | 3250 | 7160 | 930 | 135 | 9.00 |
Widened Tread Width – Provides stronger grip and enhanced driving stability.
Four zigzag longitudinal grooves design,effectively improve straight-line driving stability, enhance steering control and anti-sideslip performance, while ensuring precise steering and driving safety.
Triple-step tread groove wall design protects the groove bottom and reduces the likelihood of puncture damage.
Extra-wide tread and optimized contour design tire has a larger contact area with the ground and more uniform pressure distribution, providing stronger grip and driving stability while delivering better anti-irregular wear performance.
Dual sidewall protector ribs offer enhanced protection against cuts from roadside rocks and debris, safeguarding the casing and improving adaptability across various conditions.
Addition of stone ejector at the groove bottom, combined with optimized tread groove inclination angles, effectively prevents groove bottom damage.
Five longitudinal zigzag tread patterns adapt to various complex road conditions, offering superior anti-slip performance, lower heat generation, and enhanced durability.
Four wide, straight longitudinal main grooves ensure excellent straight-line driving stability, handling stability, and low-noise performance.
Extra-wide single-tire tread footprint and optimized contour design deliver superior grip and driving stability, while significantly improving resistance to irregular wear.
Center tread blocks are designed to provide enhanced grip, while "open-shoulder" patterns on the edge blocks can handle all kinds of complex mixed road conditions. The bead area is reinforced with nylon fabric, improving sidewall support and increasing overall bead strength—making the tire particularly suitable for medium-to-large hilly terrain, steep slopes, and winding road conditions;
Wider driving surface and optimized ground contact moulage design effectively prevent irregular wear, resulting in extended tire mileage;
Optimized tread compound formulation with balanced carbon black and resin content enhances tread pattern puncture resistance and tear strength;