Active Member
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[China]
Address: NO. 80-88, Xinlinbeier Rd, Jimei, Xiamen,China
Contact name:
Walstone Industry Limited |
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Tube Type Bus Tires 8.25R20 TT for All Axle of Buses and Medium Duty Trucks
Features
This all-steel radial ply tire of 8.25r20 is commonest urban bus tire, which having a tread pattern of four main straight grooves with zigzag-shaped sipes design, it is being recommended for all axles of the buses and medium duty trucks running on the good road conditions such as highway and urban roads. There are being available in 16 sizes which including tube type products of 8.25R15LT, 7.50R16LT, 8.25R16LT, 7.50R20 and 8.25R20, and tubeless products for 17.5-inch and 19.5-inch diameter rims: 8.5R1.7, 9.5R17.5 and 8R19.5.
The optimized geometric distribution of zigzag-shaped sipes design, with increasing grip performance on the fry and wet roads, and improves resisting ability against to irregular wear of this travel coach tire of 8.25R20.
The application of cooler running tread compound can effective restrain heat built-up, and combined with 5 straight tread with providing lower rolling resistance, and help vehicle fleets to save the fuel expenditure.
And the design for stone rejected under the bottom of grooves provides excellent self-cleaning ability, and reduces the possibility that the crown being out groove cracking due to stone retention in the grooves.
Specification
| Size | Ply | Load Index | Speed index | Standard Rim | Max load(Kg) | New tire inflated Dimensions(mm) | Tube | Operation Norm | ||
| Single | Dual | Section Width | Overall Diameter | |||||||
| 8.25R15TR | 12 | 126/124 | M | 6.50 | 1700 | 1600 | 236 | 847 | TT | TRA |
| 8.25R15TR | 14 | 129/127 | L | 6.50 | 1850 | 1750 | 236 | 847 | TT | TRA |
| 7.50R16LT | 12 | 120/116 | M | 6.00G | 1400 | 1250 | 215 | 805 | TT | GB |
| 7.50R16LT | 14 | 122/118 | M | 6.00G | 1500 | 1320 | 215 | 805 | TT | GB |
| 8.25R16LT | 12 | 123/119 | M | 6.50H | 1550 | 1360 | 235 | 865 | TT | GB |
| 8.25R16LT | 14 | 126/122 | L | 6.50H | 1700 | 1500 | 235 | 865 | TT | GB |
| 8.25R16LT | 16 | 128/124 | L | 6.50H | 1800 | 1600 | 235 | 865 | TT | GB |
| 7.50R20 | 12 | 128/126 | L | 6.00 | 1800 | 1700 | 215 | 935 | TT | GB |
| 7.50R20 | 14 | 130/128 | K | 6.00 | 1900 | 1800 | 215 | 935 | TT | GB |
| 8.25R20 | 12 | 133/131 | L | 6.50 | 2060 | 1950 | 236 | 974 | TT | GB |
| 8.25R20 | 14 | 136/134 | L | 6.50 | 2240 | 2120 | 236 | 974 | TT | GB |
| 8.25R20 | 16 | 139/137 | L | 6.50 | 2430 | 2300 | 236 | 974 | TT | GB |
| 8.5R17.5 | 12 | 121/120 | M | 6.00 | 1450 | 1400 | 215 | 802 | TL | ETRTO |
| 9.5R17.5 | 14 | 129/127 | M | 6.75 | 1850 | 1750 | 240 | 842 | TL | ETRTO |
| 9.5R17.5 | 18 | 143/141 | M | 6.75 | 2725 | 2575 | 240 | 842 | TL | ETRTO |
| 8R19.5 | 12 | 124/122 | M | 6.00 | 1600 | 1500 | 203 | 859 | TL | TRA |
Speed index
Speed Index | B | C | D | E | F | G | J | K | L | M | N | P | Q | R |
| Km/h | 50 | 60 | 65 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 170 |
Application
In recent year, there are many genuine parts of public vehicles have been adapted by the new standard, such as tube type tire part replaced by tubeless tire, but still some urban buses use tube type tire, the main specification of which are 7.50R20 and 8.25R20.
As the leading coach and bus tires specialist, WALSTONE insist the principle of exist of everything having inherent rationality and valuable, we help customer to make the best use of everything and increasing their efficiency and profit margin.
Buses service use the buses and coaches to carry numerous passengers on short journey, except of extremely bad weather, the tasks wouldn’t be stopped, they with fixed route and being convenient and inexpensive, but frequently curbing, accelerating and braking of them, so the demands of tire having some features of thickened sidewall, high tread wear, low rolling resistance.
