Best 35-Inch Sticky and Soft-Compound UTV Tires for Rock Crawling

Choosing a 35-inch UTV tire for rock crawling involves more than finding the lowest durometer number. Rubber compound matters, but so do sidewall construction, carcass flexibility, cording material, cord density and whether the tire uses radial or bias-ply construction.

A good rock-crawling tire needs to conform to uneven surfaces at low pressure while maintaining enough structure to protect the wheel and remain predictable. That same flexible construction may not be ideal for sustained high-speed desert riding, where stability, heat management and durability become more important.

The Maxxis Roxxzilla Competition has been around longer than the other tires in this guide and remains the benchmark many rock crawlers use for comparison. However, the growing number of 35-inch sticky and soft-compound tires gives UTV owners more choices—and more tradeoffs to consider.

This video shows a Polaris RZR XP S 4 rock crawling on The Maze at Sand Hollow. The steep climbs, uneven ledges and off-camber terrain provide a good example of where tire compound, carcass flexibility and low-pressure traction come into play.

35-Inch Sticky and Soft-Compound UTV Tires

This guide covers the following tires, listed alphabetically:

• EFX MotoCrusher
• GBC Rockinator
• ITP Savage H.A.R.C.
• Maxxis Roxxzilla Competition
• MRT Rocky RX Super Sticky
• OBOR RocScraper Competition
• SuperATV Cliffhanger Sticky
• System 3 RC500S
• System 3 XTR370W Sticky
• Valor Alpha H2

35-Inch Rock-Crawling Tire Comparison

Retail prices were checked in August 2026 and are approximate per-tire prices before tax, shipping and mounting. Prices and availability can change. The unusually low advertised price found for the ITP Savage H.A.R.C. should be confirmed before publication. EFX’s reported 50-durometer figure should also be verified with the manufacturer.

All nine tires are marketed as 8-ply-rated. Because that rating does not reveal the tire’s actual cord material, construction or carcass behavior, it has been omitted from the individual table cells.

Dimensions and Fitment

What Makes a Sticky Tire Work on Rock?

Sticky tires use pliable rubber compounds designed to grip small irregularities in rock and other hard surfaces. Their softer tread can mold around surface texture instead of relying only on tread depth and lug edges.

This usually produces better adhesion than a harder, longer-wearing trail or desert compound. The tradeoff is faster wear, particularly on abrasive surfaces, hard-packed terrain and pavement.

Durometer provides one way to describe rubber hardness. A lower number generally indicates softer rubber, but durometer alone cannot predict how a tire will perform. It does not describe how the compound reacts to temperature, how quickly it rebounds or how the rubber is formulated for wet, dry or abrasive conditions.

The tread and sidewall may also use different compounds. A soft tread cannot reach its potential if the rest of the tire is too stiff to conform to the terrain at the pressure being used.

Why Carcass Construction Matters

The carcass determines how the tire changes shape under load. A well-designed rock-crawling carcass lets the tread wrap around ledges and uneven surfaces while maintaining enough sidewall support to protect the wheel.

Cording material and how tightly the cords are woven influence flexibility, support and durability. Radial and bias-ply tires also flex differently. These construction details can be just as important as the hardness of the tread rubber, but manufacturers rarely publish enough information to compare them directly.

That is one reason two tires with similar durometer readings can behave very differently on the same obstacle.

Why Ply Rating Tells Us Very Little

“8-ply-rated” does not necessarily mean a tire contains eight physical layers of material. Ply rating is a legacy load-strength classification, and modern materials can achieve the required strength with fewer actual plies.

Ply rating can be useful when comparing load capacity, but it does not tell us how flexible the sidewall is, what type of cording is used or how well the carcass conforms to rock. Since every tire in this guide carries the same basic 8-ply rating, it does little to distinguish their rock-crawling performance.

Running lower PSI in your tires helps the tire conform to the terrain, which gives you more traction

Why Lower Tire Pressure Helps

Reducing tire pressure increases the contact patch and allows the tread and sidewall to conform more closely to the terrain. This can improve traction on ledges, cracks and rounded rock.

Lower pressure does not automatically make every tire work well. A stiff carcass may still resist conforming, while an overly soft carcass may fold, roll or leave the wheel vulnerable to impact damage. Vehicle weight, wheel width, beadlock design, terrain and driving speed all affect how low you can safely go.

A pressure that works for slow rock crawling may be inappropriate for high-speed desert terrain. Tire pressure should be adjusted when the vehicle’s use changes.

Rock Crawling Conditions Vary by Location

There is no single type of rock-crawling terrain. Moab and Sand Hollow both have red rock, but the rock at Sand Hollow tends to erode more quickly. The granite on the Rubicon is different from Utah slickrock, while trails in the eastern United States often add wet rock and mud to the equation.

A tread pattern and compound that excel on clean, dry rock may behave differently when the surface is muddy, wet, loose or highly abrasive. Local terrain should be part of the buying decision.

Why the Maxxis Roxxzilla Is the Benchmark

The Roxxzilla Competition was one of the first UTV tires to establish itself as a serious dedicated rock-crawling tire. It has been available longer than the other tires in this guide and has accumulated years of use in recreational crawling and competition.

Its soft compound and flexible carcass allow it to conform well at low pressure, which is why newer sticky tires are often compared with it. Calling the Roxxzilla the benchmark does not mean it automatically wins every comparison. It means it provides a familiar and proven reference point.

Do You Need a Dedicated Sticky Tire?

Before buying a sticky tire, consider how much of your riding is actually slow-speed rock crawling.

A dedicated sticky tire may be worthwhile if your UTV spends most of its time on technical trails and difficult rock obstacles. Maximum conformity and grip may matter more than tread life, highway manners or high-speed stability.

A crossover tire may be the better choice if the same vehicle is used for rock crawling, desert trails and faster open terrain. It may give up some traction on difficult obstacles but provide better stability, durability and tread life across a wider range of conditions.

Sticky tires are also commonly more expensive and wear faster than tires developed for high-speed desert riding. Maximum rock traction comes with a real cost, especially for a heavy UTV that frequently travels on abrasive hardpack or pavement.

EFX MotoCrusher

EFX MotoCrusher

The EFX MotoCrusher is marketed as a competition-grade sticky tire for technical rock terrain. Its reported 50-durometer compound places it among the softer tires in this guide, although that figure should be confirmed directly with EFX.

At a published 54.5 pounds, the MotoCrusher is close in weight to several competing 35-inch stickies. Its 22/32-inch tread depth is deeper than some competition-focused designs and may help when the trail includes loose material between rock obstacles.

The MotoCrusher is best viewed as a dedicated rock-crawling option rather than a general-purpose desert tire.

GBC Rockinator

GBC Rockinator

The GBC Rockinator uses an ultra-tacky compound with a published durometer of approximately 52. Its tread combines a broad contact area with substantial shoulder coverage for traction when climbing or working against the sidewall.

The published 35.8-inch diameter makes the Rockinator one of the taller tires in this comparison. That can increase ground clearance, but it can also affect gearing, clutch load and clearance on vehicles originally designed around smaller tires.

The Rockinator is aimed squarely at UTV owners prioritizing technical rock performance.

ITP Savage H.A.R.C.

ITP Savage H.A.R.C.

The ITP Savage H.A.R.C. uses ITP’s RG2 soft compound and is designed specifically for hard-core rock crawling. ITP does not publish a durometer figure, reinforcing why the tire should be evaluated as a complete design rather than by compound hardness alone.

At a published 63 pounds, it is the heaviest tire in the comparison. That additional rotating and unsprung mass should be considered when evaluating clutching, steering effort and suspension response.

Its 24/32-inch tread is also the deepest listed here, which may make the Savage H.A.R.C. attractive where trails mix rock with loose dirt or debris.

Maxxis Roxxzilla Competition

Maxxis Roxxzilla Competition

The Maxxis Roxxzilla Competition is the longest-established tire in this group and remains a common reference for UTV rock-crawling performance. Its reputation comes from the combination of its competition compound, tread design and a carcass that works well at reduced pressure.

Maxxis offers the 35×10 size for both 14- and 15-inch wheels, giving owners of existing 14-inch beadlocks an option not provided by most of the other tires in this guide.

Maxxis does not publish durometer or weight for this size. Its history and broad real-world use provide more meaningful context than an isolated hardness number would.

MRT Rocky RX Super Sticky

MRT Rocky RX Super Sticky

The MRT Rocky RX Super Sticky uses a published 50-durometer compound and MRT’s Nycore-belted construction. MRT positions the tire for technical rock crawling where traction and carcass conformity are priorities.

Its published weight of 54.8 pounds is competitive for a 35-inch sticky tire. The 22.5/32-inch tread depth also provides more tread than several competition-style designs.

The Rocky RX Super Sticky belongs on the shortlist for buyers seeking a dedicated, soft-compound rock tire.

OBOR RocScraper Competition

OBOR RocScraper Competition

The OBOR RocScraper Competition uses a published 52 Shore A compound and a tread designed around technical rock crawling and competition.

Its 35.4-inch published diameter is slightly taller than some nominal 35-inch tires. OBOR does not publish a tire weight for this size, so buyers concerned about rotating mass should confirm that specification before ordering.

The Competition version should not be confused with harder-compound tires intended for longer wear or broader trail use.

SuperATV Cliffhanger Sticky

SuperATV Cliffhanger Sticky

The SuperATV Cliffhanger Sticky uses a published 52-durometer compound and weighs 53 pounds, making it the lightest tire in this guide among those with published weights.

Its tread extends across the shoulders to help maintain contact when the tire is pressed against ledges or used on off-camber terrain. SuperATV developed the Sticky version for rock-crawling traction rather than maximum tread life.

Its approximate $414 retail price is the highest in this comparison, making cost and expected wear important considerations.

System 3 RC500S

System 3 RC500S

The System 3 RC500S is the sticky-compound version of the company’s rock-crawling tire. It uses a proprietary soft compound and an aggressive tread designed to maintain contact across irregular rock surfaces.

System 3 does not publish durometer, weight or overall diameter for the 35-inch size. That limits direct specification comparisons, but the RC500S remains relevant for buyers looking at purpose-built sticky tires from established UTV tire brands.

Its approximate retail price puts it near the lower end of this group.

System 3 XTR370W Sticky

System 3 XTR370W Sticky

The System 3 XTR370W Sticky combines a proprietary soft compound with a flexible 8-ply-rated radial carcass. Unlike the narrower, rock-focused RC500S, the XTR370W uses a full 12-inch tread width intended to provide additional flotation and help the tire travel over deep ruts instead of being guided by them.

Its 1.125-inch-deep, multi-angle tread blocks feature integrated siping that allows the lugs to flex and clamp onto uneven terrain. Extended tread along the sidewall adds lateral bite on off-camber obstacles and when the tire is pressed against a rock face.

The unusually wide footprint makes the XTR370W Sticky particularly interesting for riders who combine technical rock crawling with loose soil, deep ruts and other extreme terrain. That width also makes wheel offset, steering clearance and suspension clearance especially important when determining vehicle fitment.

System 3 does not currently publish the 35-inch tire’s durometer, weight or exact mounted diameter. Buyers comparing rotating mass or tight suspension clearances should confirm those measurements before ordering.

Valor Alpha H

Valor Alpha H2

The Valor Alpha H2 takes a different approach from the dedicated competition stickies. Its published 55A compound is somewhat harder, and Valor positions it as a tire capable of handling rock crawling without giving up as much performance in faster desert terrain.

That makes the Alpha H2 a potential crossover choice for drivers who encounter serious rock obstacles but do not want a tire focused exclusively on low-speed crawling.

It may not conform or grip exactly like the softest dedicated stickies, but its broader intended use could make it the better match for a multipurpose UTV.

Nominal Size, Weight and Vehicle Fitment

A “35-inch” label does not mean every tire has the same mounted diameter. Published figures in this group range from approximately 34.5 to 35.8 inches, and actual measurements can change with wheel width, tire pressure and vehicle weight.

That difference can affect ground clearance, effective gearing, clutch temperature and clearance around suspension components and bodywork. A larger tire also places more leverage on wheel bearings, steering components, axles and the drivetrain.

Weight varies significantly as well. The lightest published tire in this guide weighs 53 pounds, while the heaviest weighs 63 pounds. A 10-pound difference at each corner adds 40 pounds of rotating and unsprung mass.

Miller brother’s Roxxzilla tires were grooved to provide clearance during King of the Hammers

Sticky Tires Can Grow at High Speed

Static measurements do not tell the whole fitment story. A sticky tire built with a light, flexible rock-crawling carcass can increase in diameter at high speed. This tire growth may not create a problem when there is adequate clearance, but it becomes important when the tire sits close to an upper control arm, ball joint, shock or body panel.

This was especially clear at King of the Hammers, where vehicles transition from slow rock crawling to high-speed desert sections. The Miller brothers had sufficient tire clearance on their Can-Am Maverick R at low speed, but their Maxxis Roxxzillas grew enough at desert-racing speeds to contact the ball joint connecting the steering knuckle to the front upper control arm. They had to cut a groove around the center of the tires to create the required clearance.

That is an extreme racing example, but the lesson applies to recreational UTVs as well: checking tire clearance in the garage does not guarantee adequate clearance at speed. Leave extra room around suspension components, especially when installing a flexible sticky tire or moving to a taller size.

Before purchasing, verify wheel diameter, wheel width, offset, suspension clearance, clutching requirements and manufacturer fitment recommendations for your specific UTV. After installation, inspect the tires and nearby components for signs of rubbing, including polished metal, scuffed rubber or a narrow wear line around the tire.

Which Type of 35-Inch Tire Should You Buy?

Dedicated Rock Crawling

If maximum low-speed traction is the priority, concentrate on the competition and sticky versions of the EFX MotoCrusher, GBC Rockinator, ITP Savage H.A.R.C., Maxxis Roxxzilla, MRT Rocky RX, OBOR RocScraper, SuperATV Cliffhanger and System 3 RC500S.

Rock and Desert Crossover

If your rides combine technical rock crawling with higher-speed desert terrain, the Valor Alpha H2 deserves consideration. A crossover tire may sacrifice some ultimate rock grip while offering a more balanced combination of stability, durability and versatility.

Occasional Rock Crawling

If difficult rock obstacles make up only a small part of your riding, a dedicated sticky tire may not be necessary. A quality trail or desert tire may last longer, cost less and behave better at speed while still providing enough traction for moderate rock crawling.

Final Thoughts

The 35-inch rock-crawling tire market now includes several dedicated stickies and a growing number of softer crossover options. The Maxxis Roxxzilla is the longest-established tire in the group and provides a useful reference, but this guide is not declaring one tire the winner.

The EFX MotoCrusher, GBC Rockinator, ITP Savage H.A.R.C., MRT Rocky RX, OBOR RocScraper Competition, SuperATV Cliffhanger Sticky, System 3 RC500S and System 3 XTR370W Sticky each take a slightly different approach to dedicated rock traction. The XTR370W Sticky stands apart with its 12-inch tread width and greater emphasis on flotation and deeply rutted terrain, while the Valor Alpha H2 targets drivers who want a softer rock-capable tire without focusing exclusively on crawling.

Durometer, weight, diameter, tread depth and price can help narrow the list, but specifications do not tell the entire story. Carcass construction, rubber formulation, vehicle weight, tire pressure and local terrain all affect how a tire performs.

The right choice depends on your UTV, where you ride and how much versatility you expect from one set of tires. Rather than looking for one tire that is best everywhere, decide which tradeoffs matter most for the way you actually use your UTV.