Truck & bus radial tyres (TBR)
TBR truck tyre SAMSON GL278A 425/65R22.5 20PR
425/65R22.5
20PR
GL278A
SAMSON
Premium all-steel TBR tyre range from SAMSON, manufactured in China by Guizhou Tyre (GTC Global). A purpose-built tread design for durable operation, fuel economy and outstanding abrasion resistance.
Key figures
| Specification | Value |
|---|---|
| Standard rim | 22.5 inch |
| Load index (LI) | 164 |
| Speed symbol | K (110 km/h) |
| Tread depth | 16.5 mm |
| Standard inflation pressure | 830 kPa (120 PSI) |
| Maximum load | 4,500 kg |
| Overall diameter | 1,124 mm |
| Section width | 422 mm |
| Origin | Made in China |
Technical features
- Four-layer steel construction greatly enhances load capacity and puncture resistance.
- Advanced silica rubber compound dissipates heat quickly and optimises tread life.
- Deep multi-directional drainage grooves deliver firm grip in wet conditions.
- Retreadable and regroovable to European ECE standards.
Recommended applications
Long-haul heavy trucks, container tractors, interprovincial box trucks and premium coaches.
Which vehicles is the GL278A 425/65R22.5 tyre for?
Size 425/65R22.5 uses a 22.5 inch rim and is typically fitted to tractor units, heavy trucks and trailers.
Nearest sizes with the same GL278A tread pattern
| Size | Ply / star rating | Load index (LI) | Max load |
|---|---|---|---|
| SAMSON 275/70R22.5 | 18PR | 148/145 | 3,150 / 2,900 kg |
| SAMSON 275/80R22.5 | 18PR | — | — |
| SAMSON 295/80R22.5 | 18PR | — | — |
Quick questions about 425/65R22.5 GL278A
- Does the 425/65R22.5 GL278A tyre come with a tube?
- This size is a tubeless tyre (TL), fitted directly on an airtight rim.
- What are the inflation pressure and maximum load of 425/65R22.5 GL278A?
- Standard inflation pressure is 830 kPa (120 PSI), maximum load 4,500 kg. Always inflate when the tyre is cold and check the vehicle manufacturer’s recommendation.
- Where is this tyre made and how do I order?
- Made in China. This website only takes quotation requests and does not sell online: add the tyre to your quotation and send it, and we reply within 24 working hours.
Specifications are checked against Guizhou Tyre technical catalogues (2023–2026).
Prices are agreed per project. Quotation requests are answered within 24 working hours.