Bridgestone introduces first MASTERCORE tire for the aggregate segment
The V-Steel Rock Deep Ultra aggregate tire features increased longevity, load capacity, and tread depth

Bridgestone Americas will introduce the 27.00R49 V-Steel Rock Deep Ultra (VRDU) aggregate tire at the Aggregate Academy & Expo/AGG1 in St. Louis, Missouri. The VRDU is the first aggregate tire engineered with the company's MASTERCORE technology, bringing the company's tire life standards to the segment.
The Bridgestone MASTERCORE VRDU is designed for rock surfaces and will be offered in four advanced compounds engineered to meet the unique needs of quarry operations.
The new tire is designed with several features applicable for dump trucks
- Deeper tread depth — The tread pattern of the VRDU features a 35 percent deeper tread depth to provide haul trucks with enhanced traction on rocky terrains and improved stability.
- Improved tire life — The MASTERCORE VRDU's deeper tread pattern incorporates cooling slopes and centre grooves to help extend tire life by 26 percent compared to the Bridgestone VRLS2.
- Increased load capacity — The proprietary casing is engineered with MASTERCORE technology, which uses a wide belt package and rubber compounds. This improvement delivers up to 10 percent more load capacity versus Bridgestone's conventional tires.
At AGG1 from March 25 to 27, the Bridgestone booth will also spotlight its Engineering Solutions services and digital products that utilize the latest Bridgestone OTR technology. Bridgestone shares that this technology has been created to bring additional value to aggregate operations and help fleets move more with less.
"Bridgestone's MASTERCORE technology epitomizes how our company helps contractors move more with less," said Rob Seibert, president, off-the-road, Bridgestone Americas. "With the new 27.00R49 MASTERCORE VRDU, we're adapting our proven technology from the mining segment to the aggregate industry, offering enhanced durability, performance, and value across a wider range of applications."