Your UTV’s bolt pattern — the arrangement of lug holes on the wheel — determines which wheels will physically mount on your machine. If the bolt pattern doesn’t match, no amount of spacers or adapters can safely make a wheel fit. Here’s how to find yours, what the numbers mean, and which patterns are standard for the most popular UTV brands.

What Is a Bolt Pattern?

A bolt pattern describes two things: how many lug holes the wheel has, and the diameter of the imaginary circle those lugs sit on. It’s written as two numbers separated by a slash or “x” — for example, 4/137 or 4x156. The first number is the lug count; the second is the bolt circle diameter (BCD) in millimeters.

A 4/137 pattern means 4 lug holes arranged on a 137mm circle. A 4/156 means 4 lugs on a 156mm circle. Those 19mm of difference make the wheels completely incompatible, even though both have 4 lugs.

UTV Bolt Pattern Chart by Brand

Use this table to find your machine’s bolt pattern. When in doubt, always verify against your owner’s manual or measure directly — especially on older or pre-refresh model years where patterns sometimes changed.

How to Measure Your Bolt Pattern

If you’re unsure of your pattern, you can measure it directly on the vehicle with a ruler or bolt-pattern gauge — no wheel removal needed. For a 4-lug wheel, measure straight across from the center of one lug hole to the center of the lug hole directly opposite. That measurement in millimeters is your BCD.

For 5-lug wheels (less common on UTVs), the math changes slightly: measure from the back of one hole to the center of the hole two positions over, then multiply by 1.051. Most aftermarket bolt-pattern gauges handle this automatically and cost under $15.

What Happens If You Use the Wrong Bolt Pattern?

A wheel with the wrong BCD simply won’t seat flush against the hub. You’ll either be unable to thread the lugs at all, or you’ll thread them on a wheel that’s cocked at an angle — both are dangerous. Wheel spacers can shift the mounting surface outward but cannot change a 4/137 wheel into a 4/156 application. Bolt pattern adapters that convert one pattern to another do exist, but they add unsprung weight and a potential point of failure — for trail riding, it’s a better investment to buy correctly-patterned wheels outright.

Bolt Pattern vs. Wheel Offset: What’s the Difference?

Bolt pattern governs whether a wheel mounts. Offset governs where it sits relative to the hub face. A wheel with the correct bolt pattern can still rub on the A-arm, contact the fender, or create a negative camber problem if the offset is wrong. Most UTV builds target a 0mm to +15mm offset for a flush or mildly aggressive stance; a deeper negative offset (like -25mm or lower) pushes the wheel out aggressively and usually requires a lift kit or fender trimming.

If you’re shopping for UTV wheels or a complete wheel and tire package, both bolt pattern and offset are listed in the product specs — always confirm both before adding to cart.

Can I Use Wheel Spacers or Adapters?

Spacers (same-pattern) push a correctly-patterned wheel outward to widen your stance. They’re commonly used on UTVs for stability on technical terrain and to clear larger tires. Use hub-centric spacers only — they center on the hub bore rather than relying entirely on lug torque. Stick to machined billet aluminum (1.5" or thicker for aggressive use) and re-torque after the first 25–50 miles.

Pattern-changing adapters (e.g., converting 4/156 to 4/137) are riskier and not recommended for anything beyond low-speed utility use. If you have a rare machine with an uncommon pattern, it’s usually worth sourcing wheels made specifically for that pattern instead.

Quick Reference: Most Common UTV Bolt Patterns

Shop UTV Wheels and Tires at MotoKong

Once you’ve confirmed your bolt pattern and offset, MotoKong carries a wide selection of UTV wheels and tires from brands like Method Race Wheels, ITP, and SuperATV — all with bolt pattern and offset specs listed directly on the product page. If you’re building out a complete setup, our UTV/ATV parts catalog also covers axles, suspension, and drivetrain parts to complete the build.

Frequently Asked Questions

What bolt pattern is Can-Am?

All Can-Am UTVs (Maverick X3, Maverick Trail, Maverick Sport, Defender) use a 4/137 bolt pattern. This has been consistent across all model years for their UTV lineup.

What bolt pattern is Polaris RZR?

Polaris RZR full-size models (RZR XP, RZR Pro Series, RZR Trail) use a 4/156 bolt pattern. The mid-size Polaris Ranger uses 4/115 — verify your specific model before buying wheels.

Are Can-Am and Polaris wheels interchangeable?

No. Can-Am uses 4/137 and Polaris full-size uses 4/156. The bolt circles are different, so the wheels are not interchangeable without adapters.

How do I know if a wheel will fit my UTV?

You need to match three specs: bolt pattern (BCD), bore size (the center hole), and offset. The bolt pattern tells you if it mounts; the bore ensures it seats on the hub; the offset determines stance and clearance. Most reputable aftermarket wheels list all three.

What is 4/137 vs 4x137?

They’re the same thing — just two different ways to write it. "4/137" and "4x137" both mean 4 lug holes on a 137mm bolt circle. The slash and the "x" are interchangeable notation.

Can I use ATV wheels on a UTV?

Sometimes, if the bolt pattern matches. Many modern UTVs share bolt patterns with ATVs from the same brand (e.g., Can-Am ATVs also use 4/137). But UTV wheels are typically wider and offset differently, so clearance can be a problem. Always verify the offset and width specs, not just the bolt pattern.

What are wheel spacers for UTVs used for?

Spacers push the wheel outward from the hub, widening the stance. This improves stability on hills and rough terrain, and provides clearance for larger tires. Use hub-centric spacers (1.5" minimum for most applications) and re-torque lug nuts after the first ride.