The S550 Mustang is modern American muscle, and this owner wanted a wheel with classic concave attitude rather than a track look — the timeless star five-spoke, dished deep and wrapped in a bright polished lip. XINGTU delivered a staggered 21" two-piece forged set: a matte silver concave star center bolted into a fully polished stepped lip, a deep-dish stance that gives the Mustang real road presence.
| Item | Specification |
| Model No. | L253824 |
| Construction | 2‑Piece Forged, 6061‑T6 Aluminum |
| Front Size | 21 × 10" |
| Rear Size | 21 × 11.5" |
| PCD | 5 × 114.3 |
| Front Offset | ET30 |
| Rear Offset | ET50 |
| Center Bore | 70.5 mm |
| Lug Seat | 15 × 32 × 60° Taper |
| Finish | Matte Silver Center + Polished Lip |
The concave star five-spoke is a deceptively demanding face to forge—each spoke sweeps from a raised center down into a deep concave, so the CNC has to carve a continuous curved profile without a single flat spot or tool mark across a large 21" face. The two-piece construction is what makes this dish possible: the matte silver center bolts into an independent polished lip, two distinct finishes a monoblock can't separate, and the staggered ET30/50 lets us run a deep-dish front at ET30 with a wider, more conservative ET50 rear that fills the Mustang's rear arch without rubbing. We held the 5x114.3 / CB70.5 hubcentric bore to Ford's exact spec for a vibration-free fit, and every bolt is torque-spec'd and pressure-tested for a sealed, even-loading interface.
A deep-dish concave stance with genuine forged strength—the matte-silver-and-polish contrast gives the S550 a timeless, aggressive look, while two-piece construction keeps it serviceable for future refinishing.

Get a custom two-piece forged set in your exact size & finish
1. Can you customize wheels based on my vehicle specifications?
A: Yes. We provide full customization based on vehicle model, wheel size, width, offset, bolt pattern, center bore, brake clearance, and design requirements.
2. What information do you need before starting a custom wheel project?
A: We usually require your vehicle make, model, and year, along with wheel diameter and width, bolt pattern (PCD), offset (ET), brake clearance requirements, and preferred wheel design and finish details.
3. What materials are used for forged wheels?
A: Our forged wheels are manufactured using high-strength aerospace-grade aluminum alloys, providing excellent strength-to-weight performance.
4. What finishes are available?
A: We offer a wide range of finish options, including brushed finish, polished finish, gloss black, matte finish, custom color coating, and two-tone finishes to meet different styling requirements.
5. What is the typical production lead time?
A: Production time depends on design complexity, quantity, and finishing requirements. A typical custom project usually takes 30–45 days, including engineering confirmation, machining, QC, and delivery preparation.
6. Do you support small quantity orders?
A: Yes. We support prototype development, sample orders, and small-batch production for tuning shops, distributors, and automotive brands.