ATV/ UTV Tire & Wheel Collection 2024

We Are Into It.

There are two things we love most about this business: introducing new products, and getting out to ride at cool places nationwide. We’ve been doing both for a long time.

At STI Powersports, we’ve been testing, developing, and manufacturing tires and wheels for many years. Our 30+ years of experience with UTVs, ATVs, and off-road motorcycles gives us the ability to design superior products. And our connection with these lifestyles means we like to get out and ride just as much as you do.

We know how to design products from the ground up, develop them to their highest potential and then bring them successfully to market – that’s proven. Our goal is to provide tires and wheels that deliver great value and meet specific needs of off-roaders, whether they enjoy UTVs, ATVs, or off-road motorcycles.

Getting out to enjoy these products and meet other STI owners, that’s just as important to us. We look forward to events such as the Rally On The Rocks in Moab, Utah; Mud Nationals events, and MX and Off-road races near our offices in Southern California. We’re proud to support industry events and rallies.

It’s about more than just manufacturing and selling tires and wheels. It’s personal for us, and we know it is for you, too. We hope to see you out on the trail or the track.

+ 10mm billet beadlock ring, available in machine-matching colors.

+ 5/16-inch Grade 8 hardware.

+ 1200-pound load rating.

+ 5+2 (+40mm) offset fits nearly every UTV.

STI HD A1 BEADLOCK RINGS: Black

2021HDALLOYWHEELS

+ Classic 8-spoke design and Baja-proven construction results in our strongest beadlock wheel line.

+ Larger lug hole counter bore allows 17mm hex lug use.

+ 10mm thick billet beadlock ring and 5/16 grade-8 hardware.

+ Pre-installed valve stem with black sleeve and matching cap.

+ 1200-pound load rating.

+ Bolt-in center cap.

STI HD9 BEADLOCK SIZES & SPECS:

Matte Black, 14x7

Matte Black, 14x7 6+1

2021HDALLOYWHEELS

SIZES & SPECS:

2021HDALLOYWHEELS

SIZES

Black / Machined

+ Heavy-duty wheel lip reinforcementsinner and outer.

+ 12-inch and 14-inch sizes.

+ Strength proven through Lifetime Structural Warranty.

+ 1000-pound load rating.

+ Striking multi-spoke styling proven popular across the U.S.

+ Numerous fitment applications in 12inch and 14-inch sizes.

+ Strength proven through Lifetime Structural Warranty.

+ 1000-pound load rating.

STI

2017HDALLOYWHEELS

Honda Pioneer 1000

2017HDALLOYWHEELS

# Center caps do not fit on the Yamaha Viking/Wolverine-R. Must purchase Yamaha Viking/Wolverine-R specific center caps. Part # 210-9057 (Gloss Black), part # 210-9058 (Matte Black) or 210-9056 (Chome) HD7 & HD10 wheels come with center caps that fit on the Yamaha Viking / Wolverine-R

Yamaha YXZ 1000 ‘16-18

Yamaha Wolverine-R ‘15-’21 # Yamaha Viking ‘14-21 # Yamaha 350 Grizzly IRS ‘07-15

Yamaha YXZ 1000 ‘19-21

Yamaha Wolverine RMAX 2021

2021STITIRES

Race Proven Control.

+ Race-proven dual sport radial design - the ultimate combo of steering and traction performance.

+ 8-ply carcass and optimum compound for durability.

+ Reinforced

10-Ply Tough.

+ Aggressive tread pattern with multi-angle shoulder tread.

+ Heavy-duty steel-belt plies increase durability.

+ 8-ply-rated radial carcass, the Roctane XD is built to confidently handle today’s UTVs and ATVs.

+ 9 different sizes, including the ground-clearing 32-inch.

+ Heavy denier nylon cord to maximize tire toughness.

+ Non-directional tread design for precise control.

STI ROCTANE XD SIZES & SPECS:

Light But Mean. Mudder’s Dream.

+ 9.5-inch wide size options are ultra light, superb value.

+ Sturdy 6-ply or 8-ply carcass for low-psi operation and supreme flotation.

+ Stepped-lug construction for minimum flex and maximum traction.

+ 1.5-inch tread depth in the center, up to 2.0-

Broad Performance.

K576A Kongur

• Ultimate trail and hard terrain UTV/SXS • 8-Ply rated radial design enables a smooth quality ride • Light truck inspired tread pattern • Available in 2 popular sizes • Meets and exceeds DOT standards

| Rear

K3201 Mastodon HT

• Part of the all-new Mastodon line, the HT was designed to be the ultimate trail and hard terrain UTV and side-by-side tire • Smooth ride quality with light truck tire influenced tread pattern

• Built to exceed in both high-speed desert conditions, as well as tight rocky terrain • Heavy duty Radial 8ply rated casing for the ultimate in puncture resistance • Meets or exceeds DOT requirements (FMVSS 571.119)

Front | Rear

K3203 Mastodon AT

• Part of the all-new Mastodon line, the AT was designed to be the ultimate “do-it-all” UTV/SXS tire • Aggressive, open tread design for good clean out performance in mud • Large contact patch on harder ground conditions for superior traction and durability • Heavy duty radial 8ply rated casing for the ultimate in puncture resistance • Meets or exceeds DOT requirements (FMVSS 571.119)

Front | Rear

K299 Bear Claws 4X4 Hard Intermediate Terrain No matter what the terrain or riding conditions, the Bear Clawives

Compounded with a special tear/snag resistant material

K290 Scorpion

• The versatile knobby design of the Scorpion stings in a variety of changing conditions • For performance on a budget

applications Unique race compound delivers superior traction while extending tread life Laboratory-tested and competition-proven in the most demanding conditions Non-directional 6-ply-rated carcass. All-new profile for predictable steering, braking and acceleration

K300 Dominator Delivers

K532 "Klaw" Front MX / K533 "Klaw" Rear MX A perfect combination with the K533 Rear. Also a good match with the K535. The name is in color on the side of the tire.

The Carnivore is a true light truck-inspired tire, engineered for performance in extreme (West coast) terrains

• 8-ply radial carcass and a tread design that allows for ultimate control on and off-road

• Superb tread wear you expect from a Maxxis tire

• Also features a specialized rubber compound for excellent traction on rocks, roots and desert terrains

• Eight-ply radial construction lets the Carnivore withstand the heavier loads and high speeds of the largest side-by-side machines

MU07/MU08 Ceros

The Maxxis Ceros is a UTV-specific tire, built to handle the extreme abuse your UTV takes

• Radial construction provides better shock absorption, allowing for a smoother ride

• The Ceros contains a directional, smooth-rolling tread pattern, providing steering precision and straight-line stability at high speeds

• The tread pattern also creates predictable braking due to its aggressive traction for hardpack to intermediate conditions

MU09/MU10 Bighorn 2.0

• Based on the legendary Bighorn, the 2.0 is a lightweight version that mimics the tread design of the original, with a slimmer profile

• The non-directional pattern provides predictable cornering and claws up roots and rocks

• creating optimum climbing confidence

• The Bighorn 2.0 boasts a 6-ply rating, offering the durability that you’ve grown to expect from Bighorn tires

93-5070 25x8R-12 6 ply 25.3" 23/32" 340

93-5072 26x9R-12

93-50766 30X9R-14 8

MU10 Rear

Radial

Radial

25x10R-12

93-5077 26x11R-12 6 ply 26.4" 25/32" 480

93-50770 27x11R-12 6 ply

93-50771 28x10R-12 6 ply 28" 25/32" 1090 lbs

Radial

Radial

Radial 93-5076 26x11R-14 6 ply 26.4" 25/32" 495

93-50762 27x11R-14 6 ply

93-50761 28x11R-14 6 ply 28" 25/32" 1155 lbs

93-50767 28X11R-14 8 ply

Radial

Radial

Radial

Radial

93-50763 29x11R-14 6 ply TL Radial

93-50764 30x10R-14 6 ply

93-50768 30X11R-14 8 ply

93-50769 30X10R-15 6 ply

M931/M932 Razr

Radial

Radial

Radial

• Laboratory-tested and competition-proven in the Grand National Cross Country race series

• Front tire features a raised center ridge to provide precise steering, while side knob placement offers superb handling and cornering capability

• Specially formulated racing compound delivers superior traction while extending tread life

• Solid knob design improves traction and reduces tread squirm

• Available in both 4-ply and 6-ply for optimum puncture resistance

• Two-sided, full-color hot patch on front and rear

• Eight-time GNCC Pro Class champion BIll Ballance recommends the Razr and Razr 2 tire on all race surfaces for serious cross country racers

• Rear designed for maximum traction and acceleration

• RAZR logo - color hot patch on sidewall enhances racing appeal

• Size range to cover all racing needs

• Razr - The Champion’s Choice

Carnivore

M917/M918 Bighorn Radial

The radial construction offers a significantly smoother ride over rough trails

• The extra lugs on the shoulder protect the sidewall and rim

• The tire is suitable for desert, dirt, and rock application

ML5 Rampage

The Rampage is a true light truck-inspired tire, engineered for performance as an all-terrain type tire

• Its 8-ply-rated radial carcass will exceed expectations on and off-road

• The Rampage features a specialized rubber compound that provides excellent traction in west coast-style terrains as well as exceptional tread wear. With an aggressive all-terrain tread pattern and 8-ply-rated radial construction, the Rampage is built to handle abuse just like your SXS machine

• Exceptional tread wear

• Specialized rubber compound for supreme traction and control

• Light truck-based design

• Aggressive all-terrain tread pattern

ML7 Roxxzilla

The Roxxzilla is our premier SxS rock crawling tire! With 8-ply-rated radial construction, multi-layer sidewall design, stepped shoulder lugs and a soft tread compound, the Roxxzilla is the perfect tire for gripping rock

When mounting oversized tires to your ATV or SxS, be sure to check for proper fitment and tire clearance

• 8-ply-rated radial construction

• Soft rock crawling tread compound

• High void-ratio in center and two layers on shoulder improve grip and puncture resistance

• High multi-layer sidewall design enhances sidewall traction for rock crawling

Radial

32x10R-14 8 ply 32.3" 19/32” 617 lbs Radial

93-7902 35x10R-14 8 ply 34.7" 19/32” 741 lbs Radial

93-7905 32x10R-15 8 ply 32.7” 19/32” 609 lbs Radial 93-7906 35x10R-15 8 ply 35.5” 19/32” 730 lbs Radial

M60 Maxxzilla

The Maxxzilla features deep tread lugs to power through mud. When mounting oversize tires on your ATV, be sure to check for proper fitment and tire clearance

• Complex angle arrangement and stepped 3D pattern provide superb mud traction

• Deep lugs offer outstanding control and braking

• Special cone knob design helps expel mud

• Under-groove pattern improves puncture resistance

M917 Front M918 Rear

C9308/C9309 Ambush

CU05/CU06 Wild Thang

Release your wild side with the Wild Thang from CST. This versatile mud tire features a fanged tread pattern that extends over the shoulder for extra cornering grip, allowing a rider to dig deeper and claw out of muddy, slick conditions. The Wild Thang’s long-wearing, lightweight 6-ply rated and bias-ply construction allows for exceptional acceleration and breaking power.

• An all terrain tire built to conquer everything from soft to hard pack terrain, and mud, sand or rocks

• Lightweight construction for effortless steering, quick braking and rapid acceleration

• Shoulder lugs provide extra traction while cornering and protect the sidewall in rugged terrain

• 6-ply rating construction for durability and extra load capability

Designed with versatility in mind, Maxxis CU66 utility tires have a tread pattern that will get you where you need to go reliably, with minimal impact on the terrain. The 6-ply-rated construction and a broad contact patch ensure that you can carry the load without worrying about getting stuck. The CU66s feature a zigzagging tread pattern to provide a smooth ride, while still having large enough void and tread depth to give you the confidence to tackle any trail or condition.

Based on the wildly popular Behemoth, Maxxis CU68 utility tires are ready to get stuff done. With a wider, flat tread profile and 6-ply rating, the CU68s are designed to carry the load while delivering a smooth, turf-friendly ride. The aggressive, all-terrain tread pattern delivers excellent grip on a wide spectrum of terrains. Ride to the job site in comfort and with confidence knowing that Maxxis CU68 tires were built to take care of business.

CU01 Abuzz

CU66

CU68

C9311/C9312 Ancla

• Aggressive, sweeping tread design which provides superior traction on all types

• Deep, widely spaced tread bars shed mud to provide traction

• Available in 4-ply and 6-ply ratings for extra puncture resistance

• Comfortable ride on hard-pack

C829

CH01

Lobo

The CST Lobo tire, built to exceed DOT test standards, can handle cruising down the road as well as the treacherous conditions of Baja and other brutal desert-like terrain around the world. The CST Lobo features an 8-ply-rated radial carcass engineered specifically for durability, ride comfort, and the heavier loads of larger side x sides. The Lobo’s fast-rolling center tread is optimally paired with stepped, aggressive shoulder knobs for exceptional straight-line stability, predictable sliding, and better cornering grip.

CU-AT Apache

Take on the toughest desert challenges with Maxxis Apache CU-AT utility tires. Trusted by Cory Sappington, the creator of UTV desert racing, the Apaches offer everything a rider needs to power through rugged desert terrain. Cory appreciates, and so will you, their steel-belted, 8-ply rated, radial design, which flexes to withstand massive forces without puncturing. They also provide excellent grip and steady cornering through berms, plus comfort and reliability at high speeds. When you’re facing unforgiving desert terrain, trust the CST Apache tires to get you through.

DI2025 Power Grip

• Radial construction offers a smooth ride over rough terrain.

• Angle of lugs is ideal for mud evacuation.

• Shoulder lugs increase traction and grip while cornering

• 6-ply construction offer excellent puncture protection and increased tread life

DI2036 Kaden

Duro Kaden DI2036 tires are built with an aggressive tread design that optimizes handling and traction in harsh conditions. They also feature deep shoulder blocks to provide side grip. The results are tires that give you excellent straight line and high-speed cornering capabilities. Kaden tires are designed for use on UTVs and sideby-side vehicles, and are original equipment on select Arctic Cat Wildcat UTVs. Fit your off-road machine with a set of Duro Kaden tires and experience everything your UTV was built to deliver.

DI2037 Frontier

• Designed for UTVs

• Directional tread for lower rolling resistance

• Radial constuction for enhanced steering and control

• 6-ply rating for increased puncture resistance

DI2038

Power Grip II

Universal DI2038 Power Grip II Tires by Duro. Up the rocks, out of ravines, and down the trail, the Utility line provides the extra grip and hauling capacity required for larger ATVs and Side by Side vehicles. Whether diving thru corners, ripping thru mud, or cruising the highway; Duro tires will boost your performance and experience. From the trail to your neighborhood, and locations in-between, Duros comprehensive product line means we have just the right tires, no matter how specialized your vehicles.

DI2039 Power Grip V2

• Special bead design enhances its protection against side punctures

• Lightweight tires with a rounder profile

• Additional puncture protection between the large tread blocks

• Engineered to take the abuse of today’s high powered UTVs

• Extended radial belt for puncture resistance

• Rock deflectors between tread lugs

• Non directional tread pattern

D2003 Black Hawk

• Excellently designed for modern day champions

• Alternating wide and narrow shoulder knobs create more stability and comfort in high speed

• Systematically arranged tread design prevents skidding on wet roads.

DI2009 Power Trail

• Provides optimal balance on both loose and hard terrain.

DI2010 Buffalo

The most obvious feature of the BUFFALO TIRE is its multi-direction V-shape tread design. The diagonal layout as well as the size, thickness and depth ot the tread all contribute to its incomparable performance.

HF243 (Mud & Sand)

• Very popular tread, ideal for mud and snow. • Heavy-duty construction for worry free riding.

HF244 Desert

• The medium to hard terrain specialist

• Tighter thread that resist wear and offer more traction on packed trails and on dry sands of the desert

• The side knobs are spaced out enough to get you out of a wet groove

• Long lasting compound

HF240 (Knobby)

• Good all-around performing tires perfect for the farm or the hills

• Easily repaired if punctured

• Provide much longer tire life than most OEMs

HF274 Excavator

Deep cut channels and hollows for that extra bite in loose soil or mud

• Heavy Duty-ply (actual) construction out performs and out lasts the competition

• The 4-ply carcass helps prevent punctures and adds stability when carrying heavy loads.

HF246

• Good all-around performing tires perfect for the farm or the hills

• Easily repaired if punctured

• Provide much longer tire life than most OEMs

HF 277 Thrasher

TT400 Sport ATV tires

Track & Trail is a brand new tire line for competition and leisure designed for superb performance

• Front and rear tires are designed for traction, handling and durability, whether used on the road MX track or woods for competition or hiking

• Extra-aggressive tread design features multiple sharp edges for traction and cornering

• Six-ply carcass with a wear-and-tear resistant compound

• Very good value for the money

TT410 Sport/utility tires for ATV & UTV

These Sport/utility tires use a six-ply carcass with high mileage and cut-resistant rubber for ultimate durability in such a good-priced tire

• Designed to offer the same comfort and ride quality as an OE tire

• These TT410 tires feature a tread with well-placed lugs for smooth driving and traction

• The overall design of these tires deliver premium handling control whether riding in loose terrain or on hard-packed soil

• For both ATV and UTV

OUR MISSION

We’re like you; we ride off-road as often as possible. On top of that, our team of industry professionals has decades of experience in the off-road tire and wheel business. We understand the products and the vehicles. When engineering and manufacturing every System-3 tire and wheel, we stick to our system to prioritize the three fundamentals - traction, strength, style.

That’s the System-3 Off-Road difference. We deliver cutting-edge products, engineered with careful attention to every detail. We focus on tread depth and angles, wheel offsets and fitment, highperformance traction and durability, manufactured sizes and weights, and unmatched style.

TRACTION

It’s easy to think this is simply about tread patterns. But traction is much more than that. A tire’s sidewall design, carcass flexibility, rubber compound and its durability, the tire width and its application on a wheel. All that impacts traction - and impacts our work every day.

STRENGTH

Tires need a balanced strength that delivers the right carcass durability with a weight that is performance-focused. The structural strength of a wheel and its ability to shoulder a load means a wheel’s strength is about more than just durability. We engineer for strength in tires and wheels.

STYLE

Form and function are part of our work day to day. We know that’s important to you as well, even if the tire and wheel is submerged in a mud hole.

Mixed terrain tread pattern; tight center-block spacing & open channel shoulders excel on both hard pack & loose terrains.

10-ply rated carcass features advanced sidewall construction for a sure footed, comfortable ride.

Super-deep rim guard offers unmatched wheel protection. Tread depth .70” to .85”.

WHEELS

XT400

EXTREME TRAIL

Unique new tire combines the radial carcass of the XTR370 tire with the mud-ready tread of the XM line to create an innovative 10-inch wide smooth-running mud-trail hybrid.

Advanced 10-ply rated radial carcass blends the best of flexibility and durability.

1.25 - 2.0 inch deep multi-angle, dual-stage lugs dig in any direction.

Super aggressive shoulder lugs pull through deep ruts.

Deep rim guard protects wheel lips and helps avoid pinch flats.

XTR370 X-TERRAIN RADIAL

Tough 8-ply carcass with advanced sidewall construction for a sure-footed, comfortable ride experience.

Deep tread: from 0.75-1.0 inches (28 to 32-inch tires) and 1.0-1.25 inches (33-inch + tires)

Aggressive, multi-angle tread blocks at the shoulder for improved side bite.

Super-deep rim guard offers unmatched protection for your wheels and helps eliminate pinch flats.

30x10R-14

WHEELS

SS360

SA ND& SNOW

The unique tread design provides an all-terrain feel on any UTV, with a performance style that carves through corners.

Provides the best combination of cornering and straight-line propulsion.

Lightweight, two-ply carcass and low rolling resistance reduce stress on a vehicle’s belt and driveline.

Tread depth up to 16mm, and 20mm for HP model. New HP tire recommended for high-horsepower turbo UTVs.

28-inch sizes are ideal for ATV snow applications.

28X10-1420.569521.0LBS211-0635

30x10-1420.578023.0LBS211-0650

30x12-1420.591025.6LBS211-0660

32x10-1520.588025.6LBS211-0670

32x12-1520.51,02028.4LBS211-0680

32x12-15HP20.81,02033.3LBS211-0681

33x10-1520.593528.2LBS211-0690

33x12-1520.51,10031.4LBS211-0691

SB-4

BEADLOCK

•10mm billet ring uses 5/16-in. Grade 8 cad-plated hardware

•Accepts 17mm hex head lug

•Light & strong, with 1200-lb. load rating

•Bolt-in center cap

•Color beadlock rings available

14X7 GLOSS BLACK - MACHINED

12X7 GLOSS BLACK-MACHINED

•11-spoke Rally style design

•Factory-installed valve stem and bolt-in center cap

•Heavy-duty inner and outer wheel lip

•1200-pound load rating

•Lifetime limited warranty

WHEELS ST-3

•Our most popular wheel style, featuring sizes from 14 inch to 24 inch!

•Large lug holes accommodate most hex head lug nuts

•Flow-form manufacturing process makes our new wheel the lightest and strongest 24-inch cast wheel on the market

•1000-pound load rating

•Bolt-in center cap

APPLICATION CHART

APPLICATION CHART

APPLICATION CHART

APPLICATION CHART

MUD TERRAIN KM3

DESCRIPTION

• ADAPTED FROM RACE-PROVEN TECHNOLOGY

DESIGNED FOR THE BAJA 1000

Winning Mud-Terrain T/A® KM3 and Baja T/A® KR2

• BUILT WITH STEEL-BELTED RADIAL CONSTRUCTION

For increased durability and optimal ride quality

• ENGINEERED TO BALANCE MAXIMUM TOUGHNESS WITH MINIMAL WEIGHT

For comfort and handling performance

• TRACTION-ARMOR SIDEWALL SCULPTURE

Designed to boost traction capabilities in mud and soft soil thanks to a notched shoulder design

• TERRAIN-ATTACK TREAD DESIGN

Tread blocks are designed to deliver incredible grip from any angle of approach

• MUD-PHOBIC BARS

Created to release compacted mud for enhanced traction in muddy and soft soil conditions

• LINEAR FLEX ZONES

Built to allow the tire to flex and envelop objects in aired-down situations

• THICK, EXTENDED SHOULDER RUBBER

Helps protect the critical sidewall failure zone

• TOUGH SIDEWALL RUBBER

Helps resist splitting and bruising