MSA Offroad 4x137 wheels bring the brand's UTV and side-by-side lineup to one of the most common 4-lug ATV/UTV bolt patterns on the trail. Across this group you'll find beadlock and standard designs in diameters from 12 up to 24 inches, with finishes spanning satin and gloss blacks, machined faces, bronze, chrome, and tinted accents. Whether you ride a sport quad or a wide-stance side-by-side, there's a profile and offset built for the job.
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Why the 4x137 pattern matters for your build
The 4x137 fitment is the workhorse spacing for a huge slice of the powersports world, so getting a wheel that's purpose-built rather than adapted keeps your hub register clean and your geometry predictable. MSA Offroad designs these around real UTV duty cycles, and listings from retailers like BB Wheels confirm models such as the M21 Lok Beadlock are sold in 4x137 with charcoal finishes, while the M45 Portal is offered in 4x137 with a gloss black face. That real-world catalog presence is exactly the kind of grounding you want before you commit to a set.
Which MSA Offroad models & finishes are offered
The 4x137-friendly lineup is broad. Beadlock fans can look at the M21 LOK BEADLOCK in Charcoal Tint, the M31 LOK2 BEADLOCK in Satin Black with a matte gray ring, and the M37 BRUTE BEADLOCK in Gloss Black Machined. For street-and-trail looks, the M45 PORTAL comes in Gloss Black Machined and Gloss Black Milled, the M47 SNIPER adds a Gunmetal Milled option, and the M46 BLADE offers a bright Chrome. Lighter all-rounders include the M38 BRUTE, M33 CLUTCH, M40 ROGUE, and M12 DIESEL. Prefer warmer tones or a polished shine? Cross-shop the full Bronze MSA Offroad wheels, Chrome MSA Offroad wheels, Gray MSA Offroad wheels, Titanium MSA Offroad wheels, and the deep-stock Black MSA Offroad wheels groupings. You can also browse the full MSA Offroad lineup in one place.
Fitment coverage: diameters and related patterns
Diameters in this family run 12, 14, 15, 16, 18, 20, 22, and 24 inches. Small-diameter trail setups gravitate to the 14" MSA Offroad wheels, 15" MSA Offroad wheels, and 16" MSA Offroad wheels, while big-meat and street builds favor 18", 20", 22", and 24" MSA Offroad wheels. Many designs share tooling across patterns, so if your machine actually runs a neighboring spacing, check the MSA Offroad 4x156 wheels and MSA Offroad 4x110 wheels pages. Several models like the M50 CLUBBER are built as a combined 4x137/4x156 wheel to cover both.
How to choose your set
Start with confirmed bolt pattern and diameter for your machine, then decide between a beadlock and a standard rim — beadlocks like the M48 PORTAL BEADLOCK clamp the tire bead for aggressive low-pressure rock and dune use. Match the offset to your stance, then pick finish. A clean machined face like the M45 PORTAL Gloss Black Machined or the value-minded M38 BRUTE Gloss Black Machined reads sharp on most rigs, while the M12 DIESEL Gloss Black and milled M47 SNIPER Gunmetal Milled bring a stealthier look. Want trail-ready value? The M26 VIBE Dark Tint and M20 KORE Satin Black are easy entry points, and the M21 LOK Beadlock Charcoal Tint is a proven beadlock pick. Every order ships free, and financing through Affirm is available.
Frequently Asked Questions
Which MSA Offroad models come in 4x137?
A wide range of UTV designs are offered with 4x137, including the M12 DIESEL, M20 KORE, M21 LOK Beadlock, M31 LOK2 Beadlock, M33 CLUTCH, M37 BRUTE Beadlock, M38 BRUTE, M45 PORTAL, M46 BLADE, and M47 SNIPER, among others. Several are built as combined 4x137/4x156 wheels to fit both patterns.
What diameters are available in 4x137?
This family spans 12, 14, 15, 16, 18, 20, 22, and 24 inches, so you can build a low-pressure trail setup on a small wheel or run a larger street-and-show diameter.
Are beadlock options available?
Yes. Beadlock designs such as the M21 LOK, M31 LOK2, M37 BRUTE, and M48 PORTAL Beadlock are offered, with finishes including Charcoal Tint, Satin Black with a matte gray ring, and Gloss Black Machined.