When the trail turns technical and traction becomes everything, tire selection can make the difference between clearing an obstacle and reaching for the winch. MRT Tires developed the Rocky RX specifically for riders who demand maximum grip in rocky terrain, combining aggressive tread design, durable construction, and specialized rubber compounds to create a tire aimed squarely at serious rock crawlers and hardcore trail enthusiasts.
Designed for the Toughest Terrain
The MRT Rocky RX was engineered for extreme off-road conditions, with a focus on rock crawling and technical trail riding. The tire features an aggressive tread pattern with deep lugs and substantial tread depth designed to maintain traction on slick rock, loose terrain, ledges, and uneven surfaces. MRT offers both standard and super-sticky compound options, allowing riders to choose the balance of traction and durability that best fits their riding style.
Available in multiple sizes, including 32x10R15, 35x10R15, and 37x11R15, the Rocky RX is aimed at today’s larger, high-performance UTVs. The tire’s relatively narrow profile helps maintain precise steering response while still providing a large contact patch for maximum grip.
Nycore Construction
MRT utilizes an 8-ply design intended to withstand sharp rocks, trail hazards, and the abuse that comes with aggressive off-road driving. The reinforced construction helps resist punctures while maintaining the flexibility needed for traction on technical terrain.
The Nycore has become particularly popular among rock crawlers looking for a combination of strength, weight savings, and compliance. Depending on size, Rocky RX tires weigh between approximately 45.6 and 58 pounds.
Traction Where It Matters Most
Rock crawling is where the Rocky RX truly shines. The sticky compound options are designed to conform to rock surfaces and maximize grip on steep climbs and off-camber obstacles. Riders and reviewers have noted exceptional performance on slick rock, where the tire’s soft compound helps maintain traction even in challenging conditions.
While optimized for rocks, the tire also performs well on hardpack trails and mixed terrain. The open tread pattern helps clear loose material while maintaining predictable handling characteristics. Although dedicated mud tires may offer an advantage in deep mud, the Rocky RX provides a versatile solution for riders whose adventures are focused primarily on rocks, desert terrain, and technical trails.
Built for Today’s High-Performance UTVs
Modern sport and recreation UTVs continue to gain horsepower, suspension travel, and capability, placing greater demands on tires than ever before. The Rocky RX was developed with these machines in mind, offering sizing and construction designed to complement vehicles such as the Polaris RZR Pro R, Can-Am Maverick R, Kawasaki KRX 1000, and other large-displacement sport UTVs.
With a tread depth of 22.5/32 inch and reinforced 8-ply construction, the Rocky RX is built to handle demanding terrain while delivering the confidence riders need when tackling difficult obstacles. MRT also backs the tire with a sidewall warranty, providing additional peace of mind for off-road enthusiasts pushing their machines into challenging environments.
Final Thoughts
For UTV owners who spend their weekends crawling over ledges, navigating technical rock gardens, or exploring demanding backcountry terrain, the MRT Rocky RX deserves serious consideration. Its combination of aggressive tread design, sticky compound options, reinforced construction, and rock-focused performance makes it one of the more purpose-built rock crawling tires available for today’s high-performance UTVs.
Whether you’re building a dedicated trail machine or upgrading a weekend adventure rig, the Rocky RX delivers the traction and durability needed to tackle some of the toughest terrain the off-road world has to offer.
About MRT Tires
MRT Tires specializes in high-performance off-road tires designed for UTVs, ATVs, and racing applications. The company focuses on developing tires that provide exceptional traction, durability, and performance across a wide range of off-road environments, from rock crawling and desert racing to trail riding and recreational adventures.







