Toyo M325 The M325 is a rugged on-/off-road tire designed for construction, logging, and refuse applications where tough casing durability and retreadability are a must. A wide footprint distributes the load to resist irregular wear, while a special cut-and-chip compound enhances its durability. The aggressive block pattern and open-shoulder design provide excellent traction on a wide variety of surfaces. Deep sipes in the tread blocks improve wet traction, and a stone ejector design minimizes stone retention. Its robust casing construction also helps to improve retreadability for a lower total cost of ownership.