22×9.0 / 22×10.5 Forged Three-Piece Wheels for Buick Grand National – Full Gloss Black 5-Spoke with Red Assembly Bolts 5×120.65

Engineering Notes

XINGTU’s engineers want to highlight three details that define this build.

Three-Piece Forged Construction & Deep Stepped Lip

The 22-inch wheel combines a forged five-spoke center with separate outer lip and inner barrel components. Unlike a monoblock design, the three-piece construction allows the wheel center, lip depth and barrel dimensions to be configured as distinct elements within the assembled structure.

The front wheels measure 22×9.0 with an ET-15 offset, while the rear wheels use a wider 22×10.5 configuration with ET-13. These negative offsets, together with the positioning of the forged centers, create the pronounced stepped lips that define the wheel's appearance.

Five broad spokes give the center a clean, substantial profile, allowing the deep outer lips and exposed perimeter hardware to remain prominent. The difference in front and rear widths adds depth to the staggered configuration without changing the overall five-spoke styling.

Full Gloss Black Finish with Red Assembly Hardware

Full Gloss Black covers the forged centers, stepped outer lips and inner barrels, bringing the separate wheel components together with a consistent reflective appearance.

The wide spoke faces and deep lip surfaces create distinct reflections, while the red perimeter bolts introduce a contrasting accent around the wheel. These bolts connect the three-piece components and form part of the structural assembly rather than serving as decorative trim.

Each component receives surface preparation and finishing before assembly. The red hardware requires controlled installation to maintain the coating around the fastener heads and protect the finished wheel surfaces.

The completed assembly undergoes sealing, fastener inspection, runout checks and airtightness testing. The separate component finishing and assembly processes contribute to the 50-day production schedule.

Staggered Wheel Dimensions & Mounting Specifications

The front wheels feature a 22×9.0 ET-15 configuration, paired with 22×10.5 ET-13 rear wheels. Both use a 5×120.65 bolt pattern, 70.3 mm center bore and 15×32×60° taper-seat mounting specification.

The combination of different wheel widths and negative offsets establishes the deep-lip configuration of this Buick Grand National project. Each wheel carries a rated load capacity of 800 kg.

These production specifications define the featured wheel set. Vehicle fitment depends on the actual hub dimensions, mounting hardware, brake clearance, suspension geometry, tire specifications and available fender space.

From Design to Delivery

• PCD, center bore and front/rear offset dimensions inspected
• 15×32×60° taper-seat profile checked
• Front and rear specifications verified separately
• Center, outer lip and inner barrel interfaces inspected
• Assembly-bolt installation sequence and condition checked
• Radial and lateral runout inspected after final assembly
• Airtightness checked before tire installation
• Dynamic balancing completed for every wheel
• Gloss black coverage and red hardware consistency inspected under controlled lighting

Result

The completed wheel set features a distinctive combination of broad five-spoke centers, deep stepped lips and exposed red assembly bolts. Full Gloss Black unifies the centers, lips and barrels, while the red hardware creates a sharp contrast around the outer perimeter.

The wider 22×10.5 rear wheels produce a more pronounced profile alongside the 22×9.0 front configuration. Both retain the same five-spoke styling, giving the staggered set a coordinated appearance despite the difference in width and offset.

The finished three-piece construction brings together the separate forged components, detailed surface finishing and assembled wheel specifications of this custom Buick Grand National project.

Building a Buick Grand National or another customized American performance car with modified suspension and body clearance?

XINGTU manufactures forged wheels according to your actual vehicle measurements, including staggered widths, negative offsets, three-piece construction, custom hardware colors and deep-lip profiles

 MOQ 1 set, DDP worldwide. Send your hub, brake, suspension, fender and tire specifications for a free fitment check.

Staggered Wheel Specifications

The wheel set features 22×9.0 ET-15 front wheels and 22×10.5 ET-13 rear wheels. Both share a 5×120.65 bolt pattern, 70.3 mm center bore and 15×32×60° taper-seat specification. The front and rear dimensions establish the wheel positions and stepped-lip proportions of this Buick Grand National configuration.

Three-Piece Assembly & Structural Hardware

Separate forged centers, outer lips and inner barrels form the three-piece wheel assembly. Red perimeter bolts secure the components together, while controlled tightening and sealing support the completed assembly. Hardware inspection, runout measurement and airtightness testing form part of the final quality checks.

Full Gloss Black & Red Bolt Finish

The forged centers, outer lips and barrels feature a consistent Full Gloss Black coating. Red assembly bolts provide the contrasting perimeter detail, with separate surface preparation and inspection to maintain the appearance of the finished hardware and surrounding surfaces.

FAQs

1. Will These Three-Piece Forged Wheels Fit My Buick Grand National?

The featured wheels use a staggered 22×9.0 front and 22×10.5 rear configuration, with ET-15 and ET-13 offsets. Fitment depends on your vehicle's hub dimensions, suspension modifications, brake clearance, tire sizes and fender space. Please confirm these details before finalizing your wheel specifications.

2. What Is the Difference Between Three-Piece and Monoblock Forged Wheels?

Three-piece forged wheels combine separate centers, outer lips and inner barrels into one assembled wheel. This construction offers flexibility in wheel width, lip depth and component finishing. Monoblock wheels integrate the center, spokes and barrel into a single-piece structure.

3. Are the Red Assembly Bolts Functional?

Yes. The red perimeter bolts secure the separate components of the three-piece wheel assembly. They require the correct installation sequence and tightening torque. Each completed wheel undergoes hardware inspection, runout checks and airtightness testing.

4. What Is the Wheel Load Rating?

Each wheel has a rated load capacity of 800 kg. The three-piece construction uses separate forged components joined by perimeter assembly hardware. Wheel selection should also account for the vehicle's weight, intended use and applicable load requirements.

5. How Should I Maintain the Gloss Black Finish and Red Bolts?

Clean the wheels with a mild, pH-neutral wheel cleaner and a soft microfiber cloth. Avoid abrasive polishing products and harsh chemicals that may damage the glossy surfaces or red hardware coating. Pay particular attention to the stepped lips and fastener recesses when removing dirt.

6. How Long Does Production Take?

The production lead time for this three-piece forged wheel configuration is approximately 50 days after design and specifications are confirmed. The schedule includes machining of the separate components, surface finishing, hardware preparation, assembly, sealing and final quality inspection. Shipping time varies by destination.