Description
The APEX Wheels SM-10 from the Evolution Line represents a precision-engineered flow formed wheel designed for Porsche applications requiring 5×130 bolt pattern compatibility. This 18×8.5 ET45 wheel addresses the demands of performance applications through APEX’s flow formed construction process, which combines casting efficiency with enhanced strength characteristics to deliver optimal performance for track and street use.
The SM-10 achieves a weight of 20.6 lbs in the 18×8.5 configuration, providing unsprung weight reduction compared to factory Porsche wheels while maintaining the structural integrity required for performance driving. This weight control becomes critical in performance applications, where reduced unsprung mass directly improves handling dynamics, acceleration response, and braking performance.
The wheel utilizes flow formed construction, a manufacturing process that begins with a cast wheel blank before applying specialized forming techniques. During flow forming, the wheel barrel is spun at high speed while rollers apply controlled pressure, stretching and compressing the aluminum to create a denser grain structure. This process increases the material strength while reducing weight compared to traditional cast wheels, positioning flow formed construction between cast and forged methods in terms of both performance and cost.
The SM-10 features Profile 1 face design, providing the geometry suited for the 8.5-inch width configuration. The 71.6mm center bore specification ensures precise hub-centric mounting for Porsche applications, while the ET45 offset positions the wheel mounting surface to optimize suspension geometry and maintain proper brake clearance. The R14 Ball Seat hardware configuration accommodates standard lug nuts for secure wheel mounting.
APEX offers the SM-10 in Anthracite, Race Silver, and Satin Black finish options to complement various Porsche exterior color schemes.
- Compatibility: Porsche (5×130 bolt pattern)
- Construction: Flow Formed
- Size: 18×8.5 ET45
- Weight: 20.6 lbs
- Center Bore: 71.6mm
- Face Profile: Profile 1
- Hardware Seat: R14 Ball Seat
- Available Finishes: Anthracite, Race Silver, Satin Black
- SKU: SM101885ET45-5130-716-AN
Wheel Specifications:
| DIAMETER | WIDTH | OFFSET | BOLT PATTERN | CENTER BORE | CONSTRUCTION | FACE PROFILE | HARDWARE SEAT | WEIGHT |
| 18″ | 8.5″ | ET45 | 5x130mm | 71.6mm | Flow Formed | Profile 1 | R14 Ball Seat | 20.6 lbs |
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