The Bridgestone M729 in size 315/70R22.5 152/148M is a premium drive axle tyre for light and medium trucks, designed for regional transport applications. 
Key Specifications
Tyre Size: 315/70R22.5 (315mm width, 70% aspect ratio, Radial construction, fits a 22.5 inch rim diameter).
Load Index (Single/Dual): 152/148. This means it can carry a maximum of 3,550 kg (7,826 lbs) in a single fitment or 3,150 kg (6,945 lbs) when used in a dual configuration.
Speed Rating: M, indicating a maximum speed of 130 km/h (75 mph).
Axle Position: Drive axle.
Season Rating: All-Season, marked with M+S (Mud and Snow) and the 3PMSF (Three-Peak Mountain Snowflake) symbol, making it suitable for winter conditions.
EU Label Values: The tyre has a C rating for wet grip and an E rating for fuel efficiency (rolling resistance), with a noise level of 77 dB.
Construction: TL (Tubeless). 
Features and Benefits
Long Tread Life: Designed for excellent durability and to provide long-lasting tread wear life, even in demanding regional applications.
Strong Handling: Offers good handling and excellent traction in both wet and dry conditions.
Enhanced Traction: Features an aggressive tread pattern that improves grip in all weather, including snow.
Retread Compatible: The robust casing construction makes the tyre compatible with retreading, extending its life and providing a cost-effective solution.
Durability: Built with reinforced sidewalls to resist cuts and abrasions, enhancing overall durability.
Application: Primarily used for regional haul and pickup and delivery operations.