FAQ

What wheel sizes are offered by Cray Corvette custom wheels?

Cray offers Corvette wheel fitments in sizes 20x9.5, and 22x9.5 in all styles.

What is a load rating?

A load rating refers to a maximum allowable weight that a given wheel has been tested and rated at. All wheels can be rated differently, for instance the wheels on a passenger car will require a smaller load rating than the wheels on a heavier SUV. A vehicle manufacturer will give a standard GVWR (Gross Vehicle Weight Rating) to each of its vehicles. This rating is the maximum allowable weight for a fully loaded vehicle which includes passengers and extra equipment. At that point each of the wheels is tested and rated according to the GVWR of all the vehicles they were meant to be mounted on.

How do larger wheels affect the handling of my vehicle?

The handling can be improved by running larger wheels on your Corvette. Generally larger Corvette wheels mean that you will run a lower profile tire and usually a wider tire. The low profile tire often performs better when cornering and braking, as tire roll is greatly reduced.

Extremely large wheels are heavier and can increase braking distances. However, Cray will always endeavor to keep the wheels as light as possible without compromising the strength of the wheel.

Can I use the original Corvette center cap?

Yes. The Cray Corvette wheels will accept the factory cap. However you must keep in mind that Corvette has built several styles of center caps.

Will Cray wheels fit all Corvettes?

Cray wheels are designed to fit on the Corvette C4, Corvette C5, Corvette C6, Corvette C6 Z06, Corvette C7 vehicles. Cray always recommends test fitting for proper fitment prior to mounting of tires, especially on heavily modified vehicles.

What is the warranty on Cray Wheels?

With regular care and regular road conditions, Cray offers a two year finish warranty on its wheels with chrome and painted finishes. Cray provides a five year structural warranty for wheels it manufactures that are structurally unsound because of a manufacturing defect caused by Cray that makes the wheel unfit for its ordinary purpose. Damage or issues with wheels manufactured by Cray that are not caused by, or the result of, a manufacturing defect by Cray are not covered under the warranty. Additionally, the following are expressly excluded from the warranty:

• Cray does not offer a "road hazard warranty," so any damage or issue with a wheel caused by the wheel colliding with a pothole or any other object or debris will not be covered by the warranty;
• Wheels that have been used in racing are not covered by the warranty regardless of the damage or structural unsoundness;
• Wheels mounted on vehicles with a load rating in excess of the load rating of the wheel are not covered by the warranty regardless of the damage or structural unsoundness.
• Wheels that have been modified, repainted, or powder coated.

What is CNC Milling?

Some Cray wheel designs such as the Rivage Alloy Wheels and the Carthage Alloy Wheels have been enhanced utilizing a CNC milling technique. CNC (computer numerical control) milling machines are used to perform complex drilling and contouring operations to enhance the design of these wheels. Take a look at a closeup image of these wheels and notice the milling grooves that flank the spokes and central contours of this wheel, giving it a machined artisanal look.

What is Rotary Forged Wheels?

Many Cray wheels for Mercedes Benz including the Arrow wheel and Rotec wheel are manufactured using a highly advanced production technique called Rotary Forging. The rim of the wheels is forged at high pressure while the wheel is spun at high speed. This alters the molecular structure and enhances the strength of the alloy. The benefit is a much lighter weight than a regular cast wheel. Most importantly, the weight saving is in the outer rim of the wheel which dramatically reduces rotational mass and enhances vehicle performance.

What is a staggered fitment?

A staggered fitment is also referred to as a staggered application. Basically it means that you are running different sized wheels on the back of your Corvette than from the front. Usually a staggered wheel fitment refers to wider wheels on the rear of the vehicle, for example 19x8.5 on the front and 19x9.5 on the rear. Running wider wheels on the drive wheels means more grip on acceleration and from an aesthetic perspective, it means larger lips.