UTV Wheel Offset Buyer's Guide: How to Choose the Right Offset for Your Machine
Jul 21, 2026
When you shop for UTV or side by side wheels, you’ll see measurements such as 4+3, 5+2, and 4+4. The first number describes how much of the wheel sits inboard of the hub mounting face, while the second describes how far it projects outboard.
Those measurements determine where the wheel sits on the machine. They affect inner suspension clearance, steering geometry, track width, and the machine’s overall outside width. A more outboard wheel position can create a wider stance and additional inner clearance, but it can also reduce trailer clearance and increase leverage on steering and wheel-bearing components.
The most common mistake buyers make is comparing one aftermarket wheel only to another aftermarket wheel instead of comparing the new wheel to the factory wheel already on the machine. Start with the factory spec. Then measure the installed machine and the trailer’s narrowest usable opening—not the trailer’s advertised width.
Two questions come up more than any others: how much wider will this offset make my machine, and will it still fit my trailer? Both are answered below.
Quick Reference
5+2 → 4+3, both 7-inch wheels: about 2 inches wider overall. Track width and nominal outside width both increase by about 2 inches.
5+2 → 4+4, 7-inch to 8-inch wheels: about 3 inches more track width but 4 inches more nominal outside width. Use the track-width figure for geometry and handling comparisons; use the outside-width figure for trailer clearance.
Comparing against the factory wheel? Start with the factory wheel width and offset. Comparing two aftermarket specs alone will not tell you how much wider your machine will become.
Track width affects stability, steering feel, and component leverage. Installed outside width determines whether the machine fits through your trailer door, ramp, garage, or gate.
Prefer to shop by application? Browse UTV Wheels & Tires by year, make, and model.
What Does UTV Wheel Offset Mean?
UTV wheels commonly use split-number measurements such as 4+3, 5+2, and 4+4 rather than the true millimeter offset commonly used on automotive wheels. In this guide, we use the inch-based terminology riders and retailers are most likely to encounter, then show how to translate it into real fitment changes.
Three terms, three different things:
- UTV offset notation — the common market format: 4+3, 5+2, 4+4.
- Backspacing — the distance from the hub mounting face to the inner side of the wheel. That is the first number.
- True wheel offset — where the hub mounting face sits relative to the wheel’s centerline, expressed in millimeters. Automotive wheels use this measurement, and a number of UTV wheel brands publish it too. See the millimeter-offset section below for how to convert.
| Offset spec | Nominal wheel width | Common application and stance impact |
|---|---|---|
| 5+1 | 6 in | Deeply tucked. Used where strict trail or trailer-width limits apply. |
| 5+2 | 7 in | Conservative. Close to OEM geometry on many modern sport machines. |
| 4+3 | 7 in | Wider stance. Adds track width and inner clearance. One of the most common aftermarket specs. |
| 6+2 | 8 in | Deep backspacing on a wide wheel. Requires inner-clearance validation. |
| 5+3 | 8 in | Moderate stance on an 8-inch wheel. A middle-ground option where offered. |
| 4+4 | 8 in | Deep dish. Greatest outward projection in this group and the highest steering leverage. |
More on the first number means more tuck. The wheel pulls in toward the machine.
More on the second number means more push. The tire moves outward.
A 4+4 wheel is centered in the simplified eight-inch UTV notation and is commonly treated as a zero-offset configuration. That is a useful reference point for comparison, not a precise millimeter specification.
Offset, Backspacing, and Wheel Width Are Not the Same Thing
Two separate outcomes change when you change wheels.
Track width is the distance from the center of the left tire to the center of the right tire. It affects stability, steering behavior, and the leverage placed on steering and suspension components.
Outside width is the widest point of the machine from side to side. It determines trailer, garage, ramp, and gate clearance.
When you swap between two wheels of the same width—such as 5+2 to 4+3, both 7-inch wheels—these two measurements move together. When wheel width changes, they do not.
What About Millimeter Offset?
Offset vs backspacing is the part that trips people up. Some wheel brands publish true offset in millimeters instead of the inch-based UTV measurements. Both describe where the wheel sits, but they measure from different reference points, and UTV wheel backspacing behaves differently from true offset when wheel width changes.
- Backspacing measures from the hub mounting face to the inner edge of the wheel.
- True offset measures from the hub mounting face to the wheel’s centerline.
That difference has a practical consequence: backspacing depends on wheel width, while true offset does not.
Take two wheels with identical +38 mm offset—one 7 inches wide and one 8 inches wide. The hub mounting face remains in the same position relative to each wheel’s centerline, so the centerline-based track position remains unchanged. The wider wheel still extends farther both inboard and outboard, so suspension, body, and trailer clearance can change.
The reverse comparison can be even more misleading. Two wheels can share the same backspacing and have meaningfully different offsets. A 7-inch wheel with 5 inches of backspacing and an 8-inch wheel with 5 inches of backspacing are not equivalent. The centerline moved, which changes track position and steering geometry.
Converting Between the Two
The exact calculation uses the wheel’s overall measured width, including the rim flanges, rather than only the advertised bead-seat width. That is why published conversion charts vary slightly between brands and why the inch-based UTV measurements are approximate.
Worked example: a 15x7 wheel with +40 mm offset converts to about 5.57 inches of backspacing. Many listings would describe that as a 5+2 wheel. A different 15x7 wheel with +25 mm offset converts to about 4.98 inches of backspacing and may also be listed as 5+2, despite sitting about 15 mm farther outboard. Same inch-based description, different wheel position.
Which Number Should You Use?
Measuring a loose wheel at home: backspacing is easy to check. Lay the wheel face down, place a straightedge across the rear lip, and measure down to the mounting pad.
Comparing wheels across brands or widths: use millimeter offset. It remains meaningful when wheel width changes.
Matching factory geometry: use millimeter offset whenever the OEM spec is available. That is the relationship the original steering and suspension geometry was designed around.
The inch-based notation isn't wrong, just less precise. If one brand publishes millimeter offset and another uses an inch-based spec, convert both before making a decision. Send us both specs and we can help with the comparison.
How to Calculate the Change
For a wheel labeled A+B:
- Nominal wheel width =
A + B - Nominal wheel centerline =
(A + B) ÷ 2 - Centerline position relative to hub face =
A − centerline - Nominal outer projection from hub face =
B
Same-Width Example: 5+2 → 4+3
Both are 7-inch wheels with a centerline at 3.5 inches.
- The 5+2 centerline sits 1.5 inches inboard of the hub face:
5 − 3.5 - The 4+3 centerline sits 0.5 inch inboard:
4 − 3.5 - Per-side movement: 1.0 inch outward
- Track width: +2.0 inches
- Outer projection increases from 2 inches to 3 inches
- Outside width: +2.0 inches
The two results are the same because the wheel width did not change.
Mixed-Width Example: 5+2 → 4+4
This changes from a 7-inch wheel to an 8-inch wheel.
- The 5+2 centerline sits 1.5 inches inboard
- The 4+4 centerline is centered at 0
- Per-side centerline movement: 1.5 inches outward
- Track width: +3.0 inches
- Outer projection increases from 2 inches to 4 inches
- Outside width: +4.0 inches
These are two different results. Use the 3-inch figure when discussing track width, stability, and steering geometry. Use the 4-inch figure when checking trailer and garage clearance.
Start With Your Factory Wheel Position
Before comparing aftermarket offsets with one another, document what is already on the machine. Everything downstream depends on that starting point.
- Factory wheel width, front and rear
- Factory offset or backspacing, front and rear
- Current measured machine width at the widest point
- Current tire size
- Clearance from the inner tire sidewall to the shock, spring, tie rod, and A-arm
- Clearance from the outer tire to the fender and bodywork
- Clearance at full steering lock in both directions
- Clearance through full suspension travel
Many machines use different specifications front and rear from the factory. Record both.
Where to Find Your Factory Spec
Stamped on the wheel itself. Many wheels have the true offset cast or stamped on the back of the spokes, usually marked ET followed by a number. ET is the standard abbreviation for offset. ET+40 means +40 mm.
The service manual or OEM spec sheet. Many manufacturers publish wheel size and offset in their service information.
Measure it yourself. Lay the wheel face down, place a straightedge across the rear lip, and measure down to the hub mounting pad. That gives you the backspacing.
Factory UTV wheels often use relatively high positive offset, which tucks the wheel in toward the machine. That is why many aftermarket wheels widen the machine relative to stock. The exact amount depends on your factory wheel spec, so start with that number before shopping.
How to Choose Your Offset
There is no single best UTV wheel offset. The right one is whichever clears your suspension, fits your trailer, and stays closest to your factory geometry. Work through these in order — the first hard constraint you hit sets your ceiling.
1. Trailer, Garage, and Trail-Width Limits
These are absolute constraints. If your enclosed-trailer door opening is 77 inches, that is your maximum usable width regardless of the stance you prefer. Measure before shopping.
2. Tire Size
Larger tires need clearance somewhere. If the tire contacts inner suspension components, a more outboard wheel position may help. If the tire contacts an outer fender or body panel, moving it farther outboard can make the problem worse.
3. Suspension and Brake Clearance
A deeply tucked wheel such as 5+1 or 6+2 requires verified inner clearance around brake calipers, tie-rod ends, A-arm mounts, shocks, and springs. Don't assume it fits just because the bolt pattern matches.
4. Distance From Factory Geometry
The configuration closest to the factory wheel centerline generally preserves the intended bearing and steering leverage best. A deeply tucked wheel is not automatically safer if it moves the centerline just as far away from stock in the opposite direction.
5. Terrain
| Priority | General direction |
|---|---|
| Narrow trails and trailer limits | Conservative outside projection |
| Inner suspension clearance | More outboard wheel position |
| Rock stability | Moderate additional track width; watch component loads |
| Mud clearance | Application-dependent; tire size and body clearance drive the decision |
| High-speed desert | Factory-like geometry and verified fitment |
| Dunes | Tire choice, pressure, and power usually matter more than offset alone |
6. Desired Stance
Appearance matters, but it should come after fitment, clearance, and steering geometry. A more aggressive stance usually adds steering effort and puts more leverage on wheel bearings and steering components.
Offset Comparison Chart
All values are nominal and use 4+4 as the simplified reference.
| Wheel | Nominal width | Centerline position vs. hub face | Total track-width change vs. 4+4 | Total outside-width change vs. 4+4 |
|---|---|---|---|---|
| 5+1 | 6 in | 2.0 in inboard | −4.0 in | −6.0 in |
| 5+2 | 7 in | 1.5 in inboard | −3.0 in | −4.0 in |
| 6+2 | 8 in | 2.0 in inboard | −4.0 in | −4.0 in |
| 5+3 | 8 in | 1.0 in inboard | −2.0 in | −2.0 in |
| 4+3 | 7 in | 0.5 in inboard | −1.0 in | −2.0 in |
| 4+4 | 8 in | Centered | Baseline | Baseline |
Comparing Common Offsets Head to Head
Same Nominal Wheel Width
When wheel width stays the same, track-width change and nominal outside-width change move together.
| Change | Per-side movement | Track width | Outside width |
|---|---|---|---|
| 5+2 → 4+3 | 1.0 in out | +2.0 in | +2.0 in |
| 5+3 → 4+4 | 1.0 in out | +2.0 in | +2.0 in |
| 6+2 → 5+3 | 1.0 in out | +2.0 in | +2.0 in |
| 6+2 → 4+4 | 2.0 in out | +4.0 in | +4.0 in |
Different Nominal Wheel Widths
When wheel width changes, calculate track width and outside width separately.
| Change | Track width | Outside width |
|---|---|---|
| 5+1 → 5+2 | +1.0 in | +2.0 in |
| 4+3 → 4+4 | +1.0 in | +2.0 in |
| 5+2 → 4+4 | +3.0 in | +4.0 in |
Rule of thumb: when the first number stays the same, every additional inch in the second number adds about 1 inch of outward wheel projection per side, or 2 inches across the axle. If wheel width also changes, calculate track width and outside width separately.
How Wheel Offset and Tire Size Work Together
Section width extends beyond the wheel. A 30x10 tire mounted on an 8-inch wheel is wider than the wheel at the sidewall bulge. Your measured machine width reflects the tire, not just the rim.
Wheel width changes the mounted tire shape. The same tire mounted on a 7-inch wheel and an 8-inch wheel will sit differently. A narrower wheel pulls the sidewalls inward, while a wider wheel generally creates a squarer profile and may increase measured section width.
Rubbing often appears at the extremes. A combination that clears while parked with the steering centered may contact at full steering lock or full suspension compression. Check both.
Front and rear tire widths may differ. Many machines use a narrower front tire. Your wheel-width or offset choice may need to differ front to rear as a result.
Steering, Scrub Radius, and Component Loads
Moving the front tire centerline outward generally increases scrub radius relative to the stock configuration. That is the distance between where the steering axis meets the ground and the center of the tire’s contact patch.
What You'll Feel
More low-speed steering effort. This is noticeable when turning at a standstill or crawling through rocks. Without power steering, you'll feel it by the end of the day.
More steering kickback. Hits through the front tires feed harder into the steering wheel.
Higher tie-rod and power-steering loads. The longer lever arm pushes more force through the same steering components.
More feedback at speed. Some riders want that in open desert. It's a preference, not a universal upgrade.
Offset is one factor in steering load and feel. Steering-axis geometry, tire size, alignment, suspension design, and tire pressure all matter too. The direction is consistent though: farther out means more leverage through the steering system.
Bearings and Hubs
Moving the tire farther outboard increases leverage on wheel bearings, hubs, ball joints, tie rods, and steering racks. The configuration closest to the factory wheel centerline generally preserves the intended component loading best.
CV Joints
A wider wheel position adds leverage to the overall drivetrain system, but lift height, suspension design, axle angle, steering angle, tire diameter, traction, and driving load all drive CV angle far more directly. Offset can contribute to total load, but it should not be treated as the primary cause of CV failure.
Front-to-Rear Balance
A rear track that is materially wider than the front can encourage a more stable, push-oriented feel in some conditions, while a wider front can sharpen initial steering response. Treat this as a tuning tendency rather than a guaranteed result. Tires, alignment, suspension setup, differential behavior, and terrain often have a greater effect.
Will the New Wheels Fit My Trailer?
Trailer dimensions are not fully standardized. Many full-width open utility trailers use a deck about 83 inches wide, but the usable width between fenders, rails, tie-down hardware, or ramp components may be less.
Measure the narrowest real-world point on the trailer rather than relying on the advertised interior width. On enclosed trailers and toy haulers, the limiting point is often the rear door opening or post-to-post clearance. Toy hauler garages are especially tight because wheel wells intrude into the usable floor width.
Measurement Worksheet
| Measurement | Your number |
|---|---|
| Current measured UTV width at the widest point | |
| Expected outside-width change | |
| Estimated new installed width | |
| Trailer door opening | |
| Width between fenders or rails | |
| Ramp opening | |
| Garage door opening | |
| Clearance per side |
Measure with the machine’s tires aired to normal operating pressure and the steering centered. Then check anything that may be wider than the tires, including mirrors, fender flares, door handles, spare-tire mounts, light bars, and rock sliders.
Legal Width
A width of 102 inches, or 8 feet 6 inches, is a common maximum legal vehicle width, but state laws and route-specific requirements apply. Verify the rules for the states and roads where you tow, especially if any part of the machine or load extends beyond the trailer.
Wheel offset is often one of the easiest width variables to change. If the machine is close to the trailer limit, a more inboard wheel position may reduce overall width without changing suspension arms or tire diameter.
Wheel Spacers Versus More Outboard Wheels
A 1-inch spacer moves the entire wheel outward about 1 inch per side, adding roughly 2 inches across the axle. Geometrically, that resembles using a wheel with about 1 inch less backspacing.
Where They Differ
A spacer changes where the entire wheel sits. A different wheel can also change spoke shape and barrel clearance, which may solve fitment problems that a spacer cannot.
If the wheel barrel contacts a brake caliper or tie rod, a spacer may move the interference point outward. A different wheel design may provide the required clearance without a spacer.
A spacer also adds a stacked joint between the hub and wheel. Hub centering, stud thread engagement, correct torque, and periodic inspection all matter. Stud length must provide sufficient engagement for the added thickness.
When they move the tire centerline outward by the same amount, spacers and more-outboard wheels create similar additional leverage on wheel bearings and steering components. They remain different products with different fitment, clearance, and installation considerations.
Spacers, extended studs, and lug nuts are available in Tire & Wheel Accessories.
Complete Fitment Checklist
- Year, make, model, and submodel
- Bolt pattern
- Wheel diameter
- Wheel width
- Front and rear offset
- Lug-seat type: conical or flat
- Lug-nut thread pitch
- Brake-caliper clearance
- Tie-rod clearance
- Suspension clearance through full travel
- Clearance at full steering lock
- Tire size and load rating
- Beadlock or non-beadlock
- Trailer clearance
- Garage clearance
- Stud engagement
- Manufacturer fitment approval for your machine
Lug seat type is the one people miss. Mismatched lug seat styles can damage the wheel and prevent proper clamping, so confirm the required seat type before ordering lug nuts.
Frequently Asked Questions
How much wider will 4+3 wheels make my UTV?
Compared with a 5+2 wheel, a 4+3 wheel adds about 2 inches—both in track width and nominal outside width. Compared with your factory wheel, you need the factory wheel width and offset to calculate the change. Measure your current installed width first.
Are 4+3 wheels wider than 5+2 wheels?
Both are nominally 7-inch wheels, so the wheels themselves are the same width. The 4+3 wheel sits about 1 inch farther outboard per side, adding roughly 2 inches to both track width and nominal outside width.
Is 4+4 the same as zero offset?
A 4+4 wheel is centered in the simplified UTV notation and is commonly treated as zero offset. Whether it measures exactly 0 mm of true offset depends on the manufacturer’s wheel construction and measurement method.
Can two wheels have the same backspacing but different offsets?
Yes. Backspacing depends on wheel width, while offset is measured from the wheel centerline. A 7-inch wheel and an 8-inch wheel can share the same backspacing while positioning their centerlines differently relative to the hub.
How do I convert millimeter offset to backspacing?
Use Backspacing = (Wheel Width + Lip Thickness) ÷ 2 + Offset. The exact value depends on the wheel’s overall measured width, including the rim flanges, which is why conversion charts may vary slightly. Send us both specs and we can help with the comparison.
Does wheel offset damage UTV wheel bearings?
Moving the tire farther outboard increases leverage on wheel bearings and hubs, which can increase wear over time. The configuration closest to the factory wheel centerline generally preserves the intended loading best.
Does wheel offset affect CV axles?
A wider wheel position adds leverage to the drivetrain, but lift height, suspension geometry, tire diameter, steering angle, traction, and driving load all drive CV angle far more directly. Offset is a contributing factor, not usually the primary one.
Can I run different offsets front and rear?
Yes. Many machines use different front and rear track widths or wheel specs from the factory. Keep the wheel offset matched from left to right on the same axle.
Is a wheel spacer the same as changing wheel offset?
The results can be geometrically similar because both can move the tire centerline outward. However, a spacer does not change the wheel’s spoke or barrel profile and adds another joint between the hub and wheel. Proper hub centering, stud engagement, torque, and inspection are essential.
How do I measure whether my UTV will fit in my trailer?
Measure the machine from the outside of one tire sidewall to the outside of the opposite tire sidewall at the widest point. Keep the tires at normal pressure and the steering centered. Then measure the trailer’s narrowest usable opening, which is often the rear door posts on an enclosed trailer rather than the interior wall-to-wall width.
Will larger tires change the final width?
Yes. Tire section width often extends beyond both wheel lips, and mounting the same tire on a wider wheel can change its shape and measured width. Always measure the installed wheel-and-tire combination.
What wheel offset is closest to stock on my UTV?
Check the factory wheel width and offset, then compare the wheel-centerline positions. Send us your year, make, model, submodel, and current wheel spec and we can help identify the closest match.
Shop UTV Wheels at Dunes 2 Dezert SXS
Shop UTV Wheels & Tires — browse the complete wheel and tire catalog.
Beadlock Wheels — designed for riders running reduced tire pressure in sand, rocks, or mud.
Non-Beadlock Wheels — lighter, simpler, and free from beadlock-ring maintenance.
Wheel & Tire Packages — mounted, balanced, and ready to install.
Moving substantially outboard? Check Tire & Wheel Accessories for spacers, lug nuts, and wheel studs, and browse Fenders & Fender Flares if the wider stance creates additional tire spray or roost.
Not sure what fits? Send us your year, make, model, submodel, current wheel spec, and tire size, and we will help you choose the right setup.
New to bead retention? Read our Beadlock vs Non-Beadlock UTV Wheels Buyer's Guide to decide whether a beadlock is worth it for your setup.
Already settled on beadlocks? Our How to Install Beadlock Wheels on a UTV guide walks through mounting, torque specifications, and the re-torque schedule.
