2014 Mercedes-Benz C63 AMG — Gloss Black 2-Piece Forged with Polished Lip (19" Staggered)

Engineering Notes

R14 ball-seat geometry is a small specification with an important job. This C63 AMG setup does not use the 60-degree taper commonly found on many aftermarket wheels, so matching PCD alone would leave a critical fastening detail unresolved.

Machining the correct radius seat allows the wheel to work with the intended Mercedes fastening arrangement. Combined with the 66.6 mm center bore, it gives this page a vehicle-specific engineering detail that matters more than simply labeling the design as a 5×112 application.

Staggered sizing remains comparatively restrained: 19×8.5 ET47 at the front and 19×9.5 ET45 at the rear. Extra rear width provides additional depth without relying on a dramatic change in offset.

Gloss black concentrates the visual mass toward the center, while a polished lip and exposed hardware reveal the two-piece structure from an angle. Construction and finish therefore reinforce each other—the assembly is intentionally visible rather than disguised as a monoblock.

From Design to Delivery

• CMM dimensional inspection (PCD / CB / runout)
• Dynamic balancing on every wheel
• 2-piece hardware torqued to spec & pressure-tested for seal
• Ball/radius lug seat profile verified against AMG OEM standard
• Forged 6061-T6, hub-centric machining confirmed

Result

Correct fastening geometry sits behind a relatively understated visual package. Rear width adds depth, polished metal defines the outer section, and exposed hardware makes the construction easy to recognize without overwhelming the simple five-spoke face.

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Staggered Without Oversizing

Both axles remain at 19 inches, so the change in stance comes from width rather than diameter. A 19×8.5 front keeps the nose visually controlled, while the 19×9.5 rear provides an additional inch of width.

That difference is subtle from the side but much more apparent from a rear three-quarter angle, where the wider barrel and polished lip create greater depth.

Mercedes-Specific Fitment Details

19×8.5 Front – ET47

Front dimensions retain a relatively positive offset, keeping the face positioned appropriately within the front arch rather than pushing the wheel outward purely for appearance.

19×9.5 Rear – ET45

Rear width increases without an aggressive change in offset. This lets the 2-piece construction generate more physical depth while keeping the fitment tied to the dimensions established for the car.

Why the Ball Seat Deserves Attention

Bolt pattern alone does not define whether a wheel fits correctly. Lug-seat shape is another part of the interface between wheel and vehicle.

For this set, Xingtu machined an R14 ball/radius seat to match the intended Mercedes-AMG configuration. That detail is worth retaining in the page because it shows why vehicle-specific machining goes beyond selecting diameter and PCD.

Gloss Black Meets Polished Metal

Gloss black visually pulls the center inward, which makes the polished lip appear deeper by contrast. Bright metal around the perimeter also separates the wheel clearly from the tire.

For another AMG configuration, Xingtu can adjust width, offset, face profile and finish around the vehicle data supplied rather than applying this C63 specification unchanged.

1. What wheel sizes are used on this C63 AMG?

Front wheels measure 19×8.5, while the rear wheels are 19×9.5. Both use a 19-inch diameter.

2. What bolt pattern does this wheel use?

The listed PCD is 5×112 with a 66.6 mm center bore.

3. Why is the R14 ball seat important?

This C63 AMG specification uses a ball/radius lug-seat profile rather than a conventional taper seat. Matching the correct seat geometry helps maintain the intended fastening interface.

4. What offsets are used?

Front offset is ET47 and rear offset is ET45 on this set.

5. Why choose a 2-piece wheel for this design?

Separate center and barrel components make it possible to develop lip depth and face position independently while also creating the polished-lip appearance shown here.

6. Can the gloss black finish be changed?

Yes. Another wheel set can use a different available center or lip finish where the vehicle and design direction call for another look.

7. Will these exact dimensions suit every W204 C63 AMG?

Vehicle setup and modifications can affect clearance. Wheel dimensions should be confirmed against the individual car rather than copied automatically.

8. Can Xingtu develop another AMG fitment?

Yes. Vehicle model, brake setup, required dimensions and preferred finish can be shared with Xingtu before the final wheel specification is confirmed.