The
design of the RS2-F capitalizes on the success of the RS 2 and is 100%
mainstream Racing Dynamics style.
It features the classic, all curved, 5 spoke Racing Dynamics design, and
it sports a lightening groove in the center of the spoke that encloses
the lug hole and extend all the way to the outer edge of the spoke.
The sporty appearance of the RS2-F is enhanced by the mounting holes
for the BMW alignment machine, which allow you to have the vehicle
serviced at any BMW Center using the factory tools.
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| The
RS2-F was developed using the newest surface modeling
technologies which allow us to integrate directly with our
Finite Element Analysis software. |
The five spokes are optimized to carry the weight of the latest BMW
models, including the X5 and the 7 Series, which is a great extension of
the old RS 2 applications which were limited to the weight of the 3 and
5 series cars. The RS2-F has fully machined surfaces, rear pad
lightening pockets, and it is amongst the lightest wheel on the market.
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Another
enhancement of the RS2-F is that all 3 available diameters, 19",
20", and 22" now feature reverse contour rims only.
Although the reverse rim contour can present some technical challenges
when used in heavy rainy conditions, this move was done 100% in response
to our customers' demands.
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Modern
rendering software allows us to optimize the design without
having to build a full scale model.
This all-digital approach, from design to final product, ensures
incredible accuracy and wheels that have the tightest
tolerances. |
The 3 components of the RS2-F are held together by 10 studs that are
hidden behind the spokes, and 30 exposed bolts. The 40 bolt
construction is the most stable and gives the best results in terms of
durability and resistance to fatigue.
The RS2-F features a sealing bead of high-density inert silicone that
as vastly superior to what you find on 99% of all modular wheels in the
marketplace.
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The
RS2-F starts as a rotary forging of 6061-T6 Aerospace-grade aluminium.
Rotary forging technology aligns the grain of the material radially,
which is optimal for wheels. All forged blanks are heat-treated to
reach the maximum tensile strength.
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| The
RS2-F is optimized for weight savings. Each center is
machined to remove all excess material. Here is a detail
of the relief pockets on the mounting pad. |
Forgings are first turned on a CNC lathe, which ensures 100% accuracy
in the planar alignment of the 3 critical surfaces for a 3-piece
wheel. Since the RS2-F is only available for BMW, we can machine
all critical dimensions at the same time, so all mounting surfaces are
perfectly parallel or perpendicular to each other, and all bores are
concentric and accurate.
The turned blanks are then milled on a 3-axis CNC mill, running the
latest and most accurate CAM software. |
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| The
detail of the machined nipple that protects the assembly
bolt-head from road hazards, is a testament to Racing Dynamics'
pursuit for perfection. On a machined part, the only way
to "grow' a detail like this is to machine around it, which
adds hours to the manufacturing process.
Note the fine machining (2/100mm per incremental step) and
the smoothness of the part as it comes out of the mill. A
quick pass under the buffing wheel. and the surface will be
smooth as glass. |
This
process guarantees a perfectly symmetrical, totally balanced
flange. There are no notches for valves, no extra aluminium just
for the sake of styling, no glued stainless steel rings, no pretend-bolts, or any other feature that could interfere with our desire
to deliver the highest technological content to our customers.
Each wheel takes approximately 8 hours of machine time, which makes
the RS2-F a very exclusive product. On the other hand, if you may
have to wait a while to have your set built to order, you can rest
assured that you will be driving on 4 technological marvels of
perfection, and you will be able to tell, by how nimble and responsive
your BMW becomes, that you have made the right choice.
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| The
RS2-F is built specifically for each BMW model, so there are no
centering rings and no spacers to deal with. Each wheel was
optimized to fit the specified tyre, as we have worked closely with our
technical partner Pirelli, to deliver wheels that will allow the tyre to
work at its best. As an example, we supply 8" and 9" on
all E46 cars because these are the sizes that make the 235/35 and 265/30
tyres work at their best. although we could have built 8,5 or 9,5 for
the rear. |
Although
we deliver brake systems for almost all BMW models, we realize that many
of our customers may have brake systems from other suppliers. If
you have a brake system that you are not sure will fit inside your
RS2-F, click on the brake icon and download a template
that you can cut out and use to measure the wheel/brake clearance of
your system. |
