RAYS Volk Racing SF Challenge Wheels
These are a forged two piece aluminium wheel. They are made from the finest aircraft grade 6061 aluminium. Each part of the wheels is made by a process called hot forging. A solid piece of aluminium billet is heated and is shaped applying compressive force from a press.
The 1st forging process is performed with a pressure of 5,000 kg’s per cm2. In the 2nd forging process 3,500 kg’s are applied per cm2. The lip is also forged to 3,500 kilograms per cm2. Forging refines the grain structure and improves the physical properties of the metal. With the advanced RAYS design process the grain flow can be oriented in the direction of principal stresses encountered in actual use. Grain flow is the direction of the pattern that the crystals take during forging. Physical properties (such as strength, ductility and toughness) are much better in a forging than in the base metal, which has, crystals randomly oriented. The excess material left on the wheel is then machined off (to tolerance of 1/100 of a millimetre). Powder coating and clear coating is done by a special proprietary process to ensure long lasting quality and durability.
This is why forged wheels can be made much lighter and stronger than an equivalent cast wheel, as less material can be used for a much higher equivalent strength. Cheap wheels are gravity cast, and during this process microscopic air bubbles form in the casting, weakening the structure further over the original material.
These wheels are available in 5X114.3 PCD fitments with sizes to fit larger cars such as Skyline’s Supra’s and Lexus’s listed on the Neweraparts site.
18 and 19” wheels in Mercury Silver and Gold are available as standard.
The new Rays Metal Coat is available for an additional cost per wheel.
Prices are per wheel, so you will need input the correct quantity required. This also allows you to replace damaged wheels, or buy a matching spare if you wish. If you wish to buy different width or diameter wheels front and rear, please select these, and add a pair of each to your shopping basket. We will not be beaten on price on SF Challenge’s.
These wheels come complete with centre caps.
If you need advice on what sizes are suitable for your car, please don’t hesitate to contact us by phone or e-mail and we will advise you on what size wheels will suit your car best. We supply ALL RAYS wheels at discounted prices. Please enquire if the wheel you want is not listed.
Finish these excellent wheels off with some RAYS locking wheel nuts. Now available in store!
Note: If the specific size and colour you require is not available from stock at the time of ordering, please allow an average of an additional 4-6 weeks for delivery.
Please select the colour, and the size you require below:
Wheels are listed as follows: PCD, Diameter, Width, offset, and Lip size in mm.