LL4
- 5 sizes
- Bias
LL4 is a bias truck and bus tyre designed for medium-duty applications where consistent wear and resistance to cracking under load are required. 0. It supports load indices from 138/133 to 153/148 and speed symbols G and G/K, covering a range of service conditions from regional haul to urban transit.
What LL4 Is Built For
LL4 is a bias truck and bus tyre designed for medium-duty applications where consistent wear and resistance to cracking under load are required. The pattern is built for durability on mixed road surfaces, with a tread depth of 15.0 mm or 16.0 mm depending on size, and is available in two rim sizes: 7.0 and 8.0. It supports load indices from 138/133 to 153/148 and speed symbols G and G/K, covering a range of service conditions from regional haul to urban transit. The tyre is supplied in five size and ply combinations, with maximum single and dual loads specified per size in the size table.
Manufacturer Feature Claims
- Good Wear and Crack Resistance
Key Benefits
- Good wear and crack resistance as claimed by the manufacturer
- Tread depth of 15.0 mm or 16.0 mm depending on size, supporting longer casing life
- Available in two rim sizes: 7.0 and 8.0, matching common truck and bus wheel widths
- Load index range from 138/133 to 153/148, suitable for medium-duty service
- Speed symbol G or G/K, allowing sustained operation at up to 100 km/h
Problems It Solves
- Frequent casing failure due to cracking in bias tyres used under repeated load and vibration
- Short tread life in tyres not designed for sustained wear under medium-duty conditions
- Lack of availability of multiple ply ratings and sizes from a single supplier
- Need to source multiple tyre types from different factories for mixed fleet requirements
- Difficulty in obtaining consistent documentation and warranty support across multiple suppliers
Who It Is For
- Tyre distributors supplying medium-duty trucks and buses in Asia, Africa, and South America
- Fleet operators maintaining older vehicles with bias tyre fitments
- Importers sourcing bias tyres for markets where radial replacement is not standard
- Government and municipal transport departments buying tyres for city buses and service vehicles
- Contractors needing reliable bias tyres for regional transport and utility vehicles
Application Scenarios
- Urban delivery trucks operating on paved roads with occasional gravel access roads
- City and intercity bus fleets running daily routes with moderate axle loads
- Regional haul trucks carrying mixed cargo over asphalt and unsealed feeder roads
- Fleets requiring a durable bias tyre for consistent performance without frequent casing replacement
- Operators replacing worn bias tyres in vehicles where radial conversion is not planned
Technical Features
- Bias construction with a tread pattern designed for good wear and crack resistance
- Tread depth of 15.0 mm on 9.00-20 sizes, 16.0 mm on 11.00-20 sizes
- Section width of 259 mm on 9.00-20, 293 mm on 11.00-20
- Overall diameter of 1018 mm on 9.00-20, 1085 mm on 11.00-20
- Rim sizes of 7.0 and 8.0, matching standard truck and bus wheel widths
- Load index range from 138/133 to 153/148, covering a broad range of axle loads
- Speed symbol G (up to 100 km/h) or G/K (up to 100 km/h with dual rating)
Size Table and Specification
Manufacturer data for every size in this pattern. Check the standard rim against your wheel and the load against your axle plate before ordering.
- Tyre Type
- Bias truck and bus tyre
- Category
- Bias
- Family
- Specialty
- Sizes Available
- 9.00-20, 11.00-20
- Ply Ratings
- 12, 14, 16, 18
- Load Index Range
- 138/133 to 153/148
- Speed Symbols
- G, G/K
- Tread Depth
- 15.0 mm on 9.00-20, 16.0 mm on 11.00-20
- Section Width
- 259 mm on 9.00-20, 293 mm on 11.00-20
- Overall Diameter
- 1018 mm on 9.00-20, 1085 mm on 11.00-20
- Standard Rims
- 7.0 on 9.00-20, 8.0 on 11.00-20
- Max Load Single
- D2060 S2360 on 9.00-20 12PR, D3150 S3650 on 11.00-20 18PR
- Inflated Pressure
- 600 670 kPa on 9.00-20 12PR, 840 910 kPa on 11.00-20 18PR
All 5 Listed Sizes
| Size | Ply Rating | Load Index | Speed Symbols | Rim | Max.Load (kg) | Inflated Pressure (kPa) | Section Width (mm) | Overall Diameter (mm) | Tread Depth (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 9.00-20 | 12 | 138/133 | G | 7.0 | D2060 S2360 | 600 670 | 259 | 1018 | 15.0 |
| 9.00-20 | 14 | 141/137 | G/K | 7.0 | D2300 S2575 | 700 770 | 259 | 1018 | 15.0 |
| 9.00-20 | 16 | 145/140 | G | 7.0 | D2500 S2900 | 810 880 | 259 | 1018 | 15.0 |
| 11.00-20 | 16 | 150/145 | G | 8.0 | D2900 S3350 | 740 810 | 293 | 1085 | 16.0 |
| 11.00-20 | 18 | 153/148 | G | 8.0 | D3150 S3650 | 840 910 | 293 | 1085 | 16.0 |
Materials and Construction
- Bias casing construction as supplied by the manufacturing plant
- Tread compound rated for good wear and crack resistance as per manufacturer claim
- Sidewall and shoulder construction designed to support the claimed durability under load
From Size List to Loaded Container
Confirm the correct size, ply rating, and load index against the vehicle's axle load and rim width
We quote FOB or CIF based on your load port and confirm current plant availability
Production or stock allocation is confirmed with the plant before deposit is required
Container is loaded, insured, and shipped with full export documentation and certificate of origin
Quality and After Sales
- Every tyre supplied carries a one year warranty against manufacturing defect
- Warranty claims are handled directly by us, not passed back to the plant
- Cargo transportation insurance is arranged on every shipment
- DOT, ECE, and other marking requirements are confirmed against your import market before loading
Customisation Options
- Mixed container loading across sizes, patterns, and brands to match your order book
- Certificate of origin issued to suit your import duty position
- Sidewall branding and private label subject to plant minimum order quantity
- Label, marking, and packaging adjusted to destination market requirements
Where This Pattern Wins and Where It Does Not
Compared With Radial truck tyres in the same load index range
The LL4 bias tyre has lower rolling resistance than radial tyres but may have shorter casing life under high-speed or long-haul use
Compared With Other bias tyres without crack resistance claims
The LL4 is selected for its manufacturer claim of good wear and crack resistance, which may extend casing life in high-vibration environments
Compared With Higher ply rating bias tyres from other manufacturers
The LL4 offers a balanced combination of load capacity and tread depth in a smaller footprint, suitable for medium-duty service
Use Guide
- Match the ply rating to the actual axle load, not to the maximum available tyre
- Check the standard rim listed against your wheel: 7.0 for 9.00-20, 8.0 for 11.00-20
- Inflate to the pressure shown for your load in the size table; dual and single fitment pressures differ
- Inspect the tread and sidewall for cracks after extended use, especially in high-vibration environments
- Rotate tyres before irregular wear sets in, particularly on fleets with one-way loading patterns
LL4 Buying Questions
What is the minimum order quantity?
We load by full container. A 40HQ of 9.00-20 or 11.00-20 typically fills at container weight rather than volume, so the practical minimum is one container. Mixed loads across sizes and patterns are accepted.
What is the lead time?
It depends on whether the size is in stock at the plant or has to be produced. We confirm current availability with the plant at the time of quotation rather than quoting a standard figure.
Which sizes are available?
9.00-20 in 12PR, 14PR, 16PR; 11.00-20 in 16PR and 18PR. Full load index, rim, pressure, and dimension data for each is in the size table on this page.
Can you supply DOT or ECE marked tyres?
Marking requirements vary by destination. Tell us the import market and we confirm what marking the plant can supply on that size before you place the order.
What warranty do you give?
One year against manufacturing defect on all tyres we supply, with claims handled by us directly. Cargo transportation insurance is provided on the shipment itself.
Can you ship a mixed container with other patterns?
Yes. Most of our customers load one container across several patterns and sizes, which is the main reason to buy through us rather than from a single plant.
Is this tyre suitable for highway use?
It carries speed symbol G or G/K, which allows operation up to 100 km/h. It is suitable for highway use, but performance may differ from radial tyres in rolling resistance and casing life.
Other Patterns in the Same Category
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Read the guideHow to Read a Tyre Sidewall Marking
What 315/80R22.5 156/150K actually means, and the three checks to make on a size table before you order
Read the guideImporting Tyres Documents Markings and Common Delays
The four documents that travel with a container, and why mismatches cause more delay than logistics
Read the guideGet a Price on LL4
Send the sizes and quantities you need. We confirm plant availability and quote FOB or CIF against your load port, and it can share a container with any other pattern.