China 4x108 Forged Wheels Companies & Product

4x108 is a specialized fitment primarily serving European niche hot-hatches, historic rally platforms, and restomod builds. The market demand is highly fragmented across differing center bores (63.4mm vs 65.1mm) and offsets. Casting molds require massive steel tooling investments ($6,000+ per SKU) and huge minimum runs (300+ units per size). Forged manufacturing uses tool-less 5-axis CNC machining directly from 6061-T6 billets, enabling custom offsets, widths, and center bores with zero mold costs and minimal order quantities (MOQ = 4 wheels).

In standard 17x7.5 and 18x8.0 sizes, an OEM cast wheel weighs approximately 10.5 kg to 11.2 kg. A computer-optimized 6061-T6 monoblock forged wheel engineered by Rimax weighs between 7.2 kg and 7.8 kg while delivering a 25% higher yield strength. Reducing unsprung rotational weight by ~3.5 kg per corner substantially decreases moments of rotational inertia, enhancing suspension response, damping efficiency, and acceleration.

Because our production utilizes direct multi-axis CNC lathe turning, we program the center bore hub cut to the precise millimeter specification required. For Ford platforms, we machine exact 63.4mm hub-centric bores; for Peugeot and Citroën platforms, we bore precisely to 65.1mm; and for historic Audi 80/90 setups, to 57.1mm. This eliminates the necessity of failure-prone plastic or aluminum hub-centric centering rings.

Our engineered 4x108 monoblock forged platforms are typically certified for static wheel load ratings between 580 kg and 720 kg (1,278 lbs to 1,587 lbs) per corner, which fully satisfies the gross axle weight ratings (GAWR) of compact performance cars, historic rally racers, and modern electric restomod conversions under strict TÜV and JWL calculation formulas.

Once 3D CAD design drawings and FEA stress simulations are signed off by the client, physical production takes approximately 15 to 20 business days for complete 5-axis CNC machining, manual hand-prepping, robotic powder-coating, and CMM inspection. Volume container orders of 40-foot HQ containers carrying mixed cast or flow-formed models run on standard 30 to 45-day scheduling.

Leading Chinese manufacturers like Rimax utilize the exact same 10,000-ton forged aerospace 6061-T6 aluminum billets, high-precision Japanese OKUMA and German DMG MORI 5-axis CNC machining centers, and PPG/AkzoNobel architectural-grade powder coats as premier Western brands. Production lines are audited under JWL, VIA, and ISO 9001/IATF 16949 quality systems, providing identical mechanical performance at direct factory pricing.

Yes. Our OEM/ODM program includes complete private-label engineering. We can CNC-mill your brand logo into the aluminum center cap or rim outer lip, laser-etch batch serialization on the inner bead seat, and provide custom carton packaging, protective edge foam rings, and barcode labels configured for your regional distribution network.

Every Kipardo forged wheel manufactured by Shanghai Rimax Industry Co., Ltd. is backed by an industry-leading 5-year / 100,000 km structural warranty covering structural integrity and metal fatigue, along with a 2-year warranty against clear coat peeling, paint flaking, and chrome finish blistering under normal driving conditions.

Absolutely. Importers simply provide the 2D DXF or 3D STEP profile of the brake caliper (e.g., Brembo 4-piston, AP Racing Pro 5000R, Wilwood, or Alcon). Our CAD engineers configure the spoke curvature (concavity) and hub pad height to maintain an absolute minimum dynamic clearance of 3.0mm between the caliper face and the inner spoke surface.

For custom 6061-T6 forged wheels, our MOQ is just 1 set (4 wheels) for bespoke orders, or 20 to 40 pieces for batch dealer programs. For low-pressure cast wheels, the MOQ is typically 60 to 80 pieces per size/mold. We support global logistics via FOB Shanghai/Ningbo, CIF destination ports, and expedited door-to-door DDP air express for sample verification sets.