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About Forgestar Wheels

With over 30 years of combined experience in the automotive wheel industry Forgestar Performance Wheels has bridged the gap between forged wheels and cast wheels. Forgestar Performance Wheels is proud to introduce the world's first one piece lightweight custom flow formed wheel lineup.

Flow Forming is a production procedure that turns the wheel (or rim section) over a special mandrel and three hydraulic rollers using tremendous pressure. The pressure and turning then force the rim area to form against the mandrel, creating the shape and width of the rim. During Flow Forming, the rim actually "flows" down to create the full rim width. During Flow Forming, pressure applied to the cast rim actually changes its mechanical properties, so its strength and impact values become similar to those of a forged rim. That translates to up to 15% less weight when compared to a standard cast wheel. Our technological breakthroughs in heat treating allow us to increase dent resistance without having to make the wheel heavier.

Forgestar Performance Wheels proprietary Flow Forming technology allows the customers to choose between a range of offsets for every wheel width that is offered. The end consumer is able to choose a wheel that will perfectly fit their own individual vehicle. All Forgestar Performance Wheels are compatible with tire pressure sensor monitors and allow clearance for most high performance brake caliper upgrades.

  

What you need to know about Forgestar's Flow-Forming Process
 

Forgestar's flowforming process is a unique solution to a common problem – how to make a wheel both light and strong.
 

This specialized process begins with a low pressure type of casting and uses a special machine that spins the initial casting, heats the outer portion of the casting and then uses steel rollers pressed against the rim area to pull the rim to its final width and shape. The combination of the heat, pressure and spinning create a rim area with the strength similar to a forged wheel. During Flow Forming, the pressure applied to the cast rim actually changes its mechanical properties, so its strength and impact values become similar to those of a forged rim. That translates to up to 15% less weight when compared to a standard cast wheel. The resulting grain structure within the alloy of the wheel is linear, flowing in a single direction.

This grain structure pattern, combined with the exceptional quality of casting required for the process, gives the rim area of the wheel huge mechanical strength, and elongation. As a result of these mechanical characteristics, Forgestar is able to reduce the thickness of the rim area resulting in reduced weight, without compromising strength and resistance to impact.

So in a nutshell, the process makes the wheels:

  • Almost as strong as forged wheels

  • Lighter than cast wheels

  • Customizable to a range of offsets and bolt patterns

  • A great value for the price

Pictures of the Flow-Forming Process:

Forgestar has long been an advocate for wheel durability testing. They strongly believe that any issue regarding consumer safety is an important one. They want every customer contemplating the purchase of Forgestar wheels to know that it has been carefully engineered by the Forgestar team and thoroughly tested by independent third-party testing laboratories.

Actual test reports from independent third-party test laboratories, such as Standards Testing Labs (STL), have been provided by Forgestar.

The most common test standards used are those published by SAE (J2530) and TUEV Rheinland (Germany). PDF files of these actual test reports are provided below as well as an explanation of how the tests are performed and what the results mean to you as a consumer.

They send every width in each wheel design family with the offset configuration that presents the greatest testing challenge and subject it to the equivalent of a full product lifetime of stress in a third-party laboratory. In this way, it is ensured that the recommended wheel fitment is safe at maximum rated load.

FO5 WHEEL TEST DATA

STL REPORT 19x8.5 (PDF 35K)
STL REPORT 19x9.0 (PDF 35K)
STL REPORT 19x10 (PDF 35K)

F14 WHEEL TEST DATA

STL REPORT 19x8.5 (PDF 35K)
STL REPORT 19x9.0 (PDF 35K)
STL REPORT 19x10 (PDF 35K)
STL REPORT 19x11 (PDF 35K)

 

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