Mickey Thompson 6x139.7 wheels bring the brand's purpose-built off-road and street rolling stock to one of the most common six-lug truck and SUV bolt patterns. This grouping pulls together the Mickey Thompson lineup spanning compact 15-inch sizes up through bold 24-inch diameters, with finishes that range from clean polished faces to murdered-out matte and satin blacks. Whether you're building a daily-driven half-ton or a trail rig, this is the starting point for the full Mickey Thompson lineup.
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Why Mickey Thompson 6x139.7 Fitment Matters
Mickey Thompson has long described its wheel styles as ranging from classic throwback designs to bold, modern looks, and the 6x139.7 (also written 6x5.5) pattern is where that heritage meets the trucks and SUVs people actually drive. Sources show Mickey Thompson's Classic-series designs in 6x139.7 are built around high load ratings for hauling, a smooth outer lip for a clean appearance, and a deeply embossed M/T logo as a mark of strength. That combination of utility and presence is exactly why builders gravitate toward this pattern.
Models & Finish Options
The selection here covers off-road, street, and drag-bred products including the MIK Baja Boss, the all-terrain MIK Baja Boss A/T, the rugged MIK Baja Legend MTZ, and the MIK Baja Legend EXP. You'll also find the MIK Baja Pro XS, the MIK Baja MTZP3, the MIK Baja ATZP3, and street-focused options like the MIK Street Comp and MIK Deegan 38 All-Terrain.
Finish choices include Matte Black and Satin Black (including Satin Black with zinc bolts), Polished and Polished with zinc bolts, and a Satin Bronze with a Black Lip for a warmer, contrasting look.
Fitment Coverage
This page focuses on the 6x139.7 pattern, which maps to many six-lug full-size and midsize trucks and SUVs. Across the broader Mickey Thompson range you'll also find related six-lug fitments like 6x135 and 6x120, five-lug options such as 5x139.7 and 5x127, plus heavy-duty eight-lug patterns including 8x165.1 and 8x170. Diameters run 15, 16, 17, 18, 19, 20, 22, and 24 inches.
How to Choose
Start with diameter and intended use. Smaller sizes like 15-inch and 16-inch wheels suit taller-sidewall off-road builds, while 17-inch and 18-inch options balance trail and street duty. For a more aggressive stance, step into 20-inch or 22-inch setups. The MIK Baja Boss 33X12.50R15 and MIK Baja Boss A/T 235/75R15 are popular workhorse picks, while the MIK Baja Pro XS 35X13.50-17 leans toward serious off-road builds and the MIK Baja Legend MTZ 31X10.50R15 covers mud-terrain duty. Every order ships free, and financing is available through Affirm.
Frequently Asked Questions
What does 6x139.7 mean? It's a six-lug bolt pattern, also written 6x5.5, used across many full-size and midsize six-lug trucks and SUVs.
What finishes are offered in this group? Options include Matte Black, Satin Black (and Satin Black with zinc bolts), Polished (and Polished with zinc bolts), and Satin Bronze with a Black Lip.
What diameters can I get? Sizes span 15, 16, 17, 18, 19, 20, 22, and 24 inches depending on the model you choose.