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Pit Stop USA is The Online Motorsports Superstore! Racing Optics SpeedStack7™ Tearoffs…finally a tearoff that really works! Tearoffs are universally used in motorsports as multi-layered disposable lenses. As the race proceeds, the top layer accumulates mud, rubber, fuel, oil and water, which eventually obscure the driver's vision. The top layer of tearoff is removed by the driver, which reveals the next clean layer. This is repeated through the course of the race until the driver exhausts the supply of tearoffs and is left visually impaired for the balance of the event. An apparent solution to this problem might be to add additional tearoffs to the face shield, but experience shows that six or seven tearoffs reduce visibility to the point where it would be unsafe to enter the track. Mature drivers may only be able to tolerate a five tearoffs deep stack in Saturday night racing. In simple terms, the driver starts the race blind with too many tearoffs, and ends the race blind with too few. While a single layer tearoff is nothing more than simple thin piece of plastic, the Racing Optics SpeedStack7™ is a complex optical device, having all the characteristics found in a camera lens or telescope. Most single layer tearoffs use "packaging grade" clear polyester. Racing Optics starts by using only the highest quality "optical grade" Mylar™, manufactured by DuPont. Racing Optics created the patented Racing Optics SpeedStack7™ by optically laminating seven layers of tearoffs together. The laminated tearoffs of the SpeedStack7™ displace any air in the Stack, thus eliminating the reflections between layers. A seven layer Racing Optics SpeedStack7™ has about the same optical characteristics as a single tearoff! Racing Optics SpeedStack7™ Tearoffs can be layered, giving the driver up to twenty-one or more tearoffs for those long races. This allows the driver to have better visual acuity than ever experienced before from the start of a race to the checkered flag.
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