2024 GMC sierra on RTX Slate 6x139.7 20x9 +20 Satin Black Wheels

This preview shows how RTX Slate 6x139.7 20x9 +20 Satin Black wheels look on a 2024 GMC sierra. Use this page to compare finish, diameter, and overall styling before buying.

RTX Slate 6x139.7 20x9 +20 Satin Black Wheels for the 2024 GMC sierra

The 20×9 RTX Slate with a +20 offset sits in the moderate-to-aggressive range for a full-size truck platform; this depth and offset combination typically delivers a near-flush appearance at stock ride height on most Sierra trims, though fender clearance depends on your specific suspension setup and whether you plan to lower the vehicle. A square tire setup (matching widths front and rear) is common for truck aesthetics and provides balanced wear; consider 275–285 mm width to match the wheel's proportions without excessive stretch. Verify bolt-pattern compatibility (6×139.7) with your model year before purchase.

The RTX Slate 6x139.7 20x9 +20 Satin Black is one of the most popular aftermarket wheel choices for the GMC sierra platform. When shopping for 2024 GMC sierra wheels, fitment is everything -- bolt pattern, hub bore, offset, and fender clearance all play a role in achieving the perfect stance. Our fitment specialists can help you dial in the exact specs for your 2024 GMC sierra.