Forgestar Wheels strives to provide only the highest quality product. To help ensure this, Forgestar is a member of the SEMA Wheel and Tire Council, which is made up of various wheel companies who share the same goal of improving the quality of automotive light alloy wheels. Forgestar wheels are all rigorously tested and have all been proven to be only the highest quality wheels possible. Forgestar wheels have the following certifications:
Japan Light Alloy Wheel standard is the quality standard for Japan. The JWL standard is a set of performance requirements for alloy wheels which is overseen by the Japan Light Alloy Wheel Testing Council (TWTC) in Japan. Having this certification is a representation of a quality product due to the rigorous testing that takes place to receive it. It is required for all wheels in Japan and is set by the Ministry of Land, Infrastructure, Transport and Tourism of Japan.
JWL TESTING REQUIREMENTS
– Dynamic Cornering Fatigue Test
– Dynamic Radial Fatigue Test
– Impact Test
VIA independently established a set of parameters to test and register wheels to JWL standards. Once VIA has tested and certified the wheels to JWL standards, it can bear the VIA stamp as well as the JWL mark, only then is it considered JWL Certified and VIA Registered.
HOW ARE MY WHEELS AFFECTED BY TRACK USE?
To many people, driving is not only a modern day necessity but a source of enjoyment as well. For some, this passion is amplified thru racing. Nowadays, it is possible to access a racetrack without owning a specially prepared race car. Meanwhile, there are several avenues through which a driver can learn and practice high performance driving skills. Car clubs are popping up everywhere and many driving schools offer relevant specialized courses, offering interested individuals the opportunity to practice their newly acquired knowledge by using their regular cars.
It’s not even mandatory to modify them –street cars can start racing with limited or stock modifications. In this context, it is common to experience track wear on certain car parts such as brakes, tires or suspension. However, often forgotten are that wheels are also consumable items just like everything else on a race car.
It is common to overlook how important it is to check wheels before and after every track day. In a professional setting, wheels are routinely checked during the race weekend, multiple times. What’s more, their total racing hours are logged and proactive stress tests are done on them periodically. Through these checks and inspections, the specialized staff will judge a wheel’s condition and conclude whether they should be replaced or not. On the contrary, amateur racing drivers don’t have the luxury of these checks. To the common driver’s knowledge, the wheel is not a critical part that endures high levels of stress, therefore it is not thought as component that can easily fail; unfortunately, nothing could be farther from the truth, especially in the context of track racing, where the wheels are put under greater stress, higher impact and stronger G-Force pressure.
Competition tires are very stiff and have a much higher grip, resulting in much greater lateral forces compared to regular tires. As a result of their stiffness, most of the stress during turns is transferred to the wheel.
There are other factors adding to wheel fatigue while race driving. Think about all the limits we push when racing; turning tightly on the corners often takes us on the side curbing or the rumble strips. Sometimes we spin out or run off the track. Last but not least are the immense temperature changes resulting from braking, e.g., from an S-turn to a hairpin, and the continuous temperature shifting from the outside cool to the extremely hot brakes. These factors add in the deterioration of the wheel status.
Finally, wheel fatigue is also influenced by the number of times a set of tire and wheel is mounted and dismounted. Because street tires are expected to last longer than DOT competition tires, it is usual to replace them a lot more frequently, leading to an increased number of wheel dismounts and mounts, thereby further compromising their endurance.
Inspecting your wheels to see if they are out of round is crucial, however, visual inspection can’t always be trusted. A good occasion for such an inspection is when you are changing tires. It has become common practice with many tire installers to laser-check run-outs with special equipment. Excessive run-outs signify that it’s time to replace the wheel.
Contrary to common belief, wheels constitute a crucial safety feature of your car; checking your wheels prior and after track events will massively decrease the possibility of them failing. Damage and cracks accumulate over time, evolving into weak spots. The harsh conditions and the increased stress of track driving can compromise these weaknesses, leading to total wheel failure.
Doing proactive checks of your Forgestar wheels will help them last longer, while also making your faster track times more enjoyable.