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      02-04-2011, 04:57 PM   #11
E90SLAM
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Quote:
Originally Posted by BrokenVert View Post
Wait hold on a sec. Enkei makes the wheels? I thought OZ supplied F1 wheels.
For a certain teams only...like what kingofjericho said....various teams uses various brands...

Ferrari uses certain brand probably because of a better partnership and deals, Italian team doesn't necessary use a Italian oils and lubricants (Shell - Dutch) and wheels (BBS - Germany)...and computers (Acer - Taiwan)...

FIA only restircts the magnesium alloy component, size and weight for wheels, no limit on manufacturer as long as they meet specification and regulations...as described in Article 12...

Quote:
ARTICLE 12: WHEELS AND TYRES
12.1 Location:
Wheels must be external to the bodywork in plan view, with the rear aerodynamic device removed.
12.2 Number of wheels:
The number of wheels is fixed at four.
12.3 Wheel material:
Wheels must be made from AZ70 or AZ80 magnesium alloys.
12.4 Wheel dimensions :
12.4.1 Complete wheel width must lie between 305mm and 355mm when fitted to the front of the car and between 365mm and 380mm when fitted to the rear.
12.4.2 Complete wheel diameter must not exceed 660mm when fitted with dry-weather tyres or 670mm when fitted with wet weather tyres.
12.4.3 Complete wheel width and diameter will be measured horizontally at axle height, with the wheel held in a vertical position and when fitted with new tyres inflated to 1.4 bar.
12.4.4 Wheel dimensions and geometry must comply with the following specifications :
- the minimum wheel thickness is 3.0mm ;
- the minimum bead thickness is 4.0mm (measured from hump to outer edge of the lip) ;
- the ETRTO standard bead profile is prescribed ;
- the tyre mounting widths are 12” (304.8mm +/-0.5mm) front; 13.7” (348.0mm +/-0.5mm) rear ;
- the wheel lip thickness is 9mm (+/-1mm) ;
- the outer lip diameter is 358mm (+/-1mm) ;
- a lip recess of maximum 1.0mm depth between a radius of 165mm and a radius of 173mm from wheel axis is permitted (for wheel branding, logo, part number, etc) ;
- with the exception of the wheel lip, only a single turned profile with a maximum thickness of 8mm is allowed radially outboard of the exclusion zones specified in Article 12.4.5 ;
- the design of the wheel must meet the general requirements of the tyre supplier for the mounting and dismounting of tyres including allowance for sensors and valves ;
- the wheel design cannot be handed between left and right designs.
12.4.5 No wheel material is permitted in the following exclusion zones :
- A concentric cylinder of diameter 305mm and length 115mm positioned with its inner face lying in the same plane as the inboard face of the front wheel ;
- A concentric cylinder of diameter 305mm and length 25mm positioned with its outer face lying in the same plane as the outboard face of the front wheel ;
- A concentric cylinder of diameter 305mm and length 100mm positioned with its inner face lying in the same plane as the inboard face of the rear wheel ;
- A concentric cylinder of diameter 305mm and length 30mm positioned with its outer face lying in the same plane as the outboard face of the rear wheel.
12.4.6 When viewed perpendicular to the plane formed by the outer face of the wheel and between the diameters of 120mm and 270mm the wheel may have an area of no greater than 24,000mm2.
http://www.formula1.com/inside_f1/ru.../8712/fia.html
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