AC Schnitzer Type V Forged 20" Wheel for BMW M3/ 5-Series / M5 / 6-Series / M6 / 7-Series

Displayed price is per wheel. This item must be purchased in a set of 4 wheels

AC Schnitzer classic 5 spoke alloy wheels are maunfactured using the forging process making them lightweight for improved suspension response, quicker acceleration and faster steering. The spokes on this wheel curve in towards the centre for added "dish" effect and have polished faces. One of our best selling wheels that captures the spirit of AC Schnitzer perfectly!

This wheel set comes in staggered fitment as standard, 9J x 20" front and 10J x 20" rear.

Developed exclusively for BMW
Machined original AC Schnitzer logo
Open design in BiColor, giving a clear view to the brakes

Uniqueness of the Forged Alloy Wheels

Made in Germany
Weight-optimized
Heat treated
Developed exclusively for BMW
With exclusive AC Schnitzer lettering
Compatible with standard RDC system
Warranty 2 years
Production monitored according to ISO standard
BiColor optionally also in anthracite
KDS mount for wheel alignment according to BMW specification is available

BMW M3, M5 & M6 2006-2012 AC SCHNITZER Type V Forged 20" WHEELS & BLACK CAPS. These wheels will fit BMW models M5,550,535,530,525,M6,650 and 645. With correct wheel spacers ,they can even fit BMW model M3.

Front wheel size : 9.0J x 20. Offset 22 mm

Rear wheel size : 10.0J x 20 Offset 33 mm

Bolt pattern 5 x 120

Philosophy/Design

Less is more: Superlight XXL rims from AC Schnitzer - Type V Lightweight Forged Wheels Rim designers have so far faced a dilemma. They always had to meet two conflicting requirements in their product developments: On the one hand, the rim diameters and wheel widths are to become ever larger, but on the other hand, the designers are also to reduce the rim weight. AC Schnitzer engineers and designers have found a solution for this feat: technically particularly innovative and interesting in design. Thanks to their particularly innovative production method, the Type V Forged Lightweight Wheels meet both criteria in an optimum manner. Due to their special design, they open up completely new design possibilities: numerous variants can be realized by combining a partially polished or lacquered surface. What is your personal benefit? - high quality lightweight forged wheels save approx. 25-35% weight, compared with conventional casted wheels - elegantly spun star-shaped centres - slender design of the wheels thanks to high strength material - perceptible reduction in unsprung mass and gyroscopic forces on the car, therefore - significantly improved driving dynamics - significantly improved acceleration and deceleration due to lower masses - improved cornering handling - machined original AC Schnitzer logo - high quality clear lacquer protects the wheel against corrosion, therefore - long-lasting - open design in BiColor, giving a clear view to the brakes

Material

About 97 percent of the melt consists of aluminium, but the remaining three percent of the wrought alloy also helps to influence the desired properties of the material for the ideal wheel. In addition to the main component aluminium, the alloy also contains one percent magnesium and one percent titanium each (which ensures finer grain size). The precise composition of the material alloy has a decisive influence on the subsequent properties of the wheel. Pure Aluminium Approximately 97 percent of the alloy consists of pure aluminium. The remaining three percent of the wrought alloy is important for the properties of the material. Chrome The AlCr20 master alloy with the hard metal chromium improves recrystallisation resistance. Master alloy means a mixture of aluminium with other materials, in this case it is a maximum of 0.25% by weight of chromium, i.e. a very small amount. Magnesium Together with pure silicium, magnesium leads to a higher strength of the total alloy. The maximum proportion of these materials is 1.2 and 1.3 percent by weight, respectively. Titanium These glossy ingots are the master alloy AlTi5B1, which serves a finer grain structure of the total alloy. The proportion of the expensive raw material titanium is only 0.1 percent by weight. Silicium These irregularly shaped lumps are only added to the alloy together with magnesium. This increases the strength. The silicium content is between 0.7 and 1.3 percent by weight. Manganese The addition of 0.4 to 1.0 % manganese makes the alloy tougher. Manganese has a positive effect on recrystallisation behaviour.

Manufacture

Forging - an elaborate process that must offer maximum safety. In many steps the wheel is prepared for its important task for a long car life. The process control guarantees excellent material properties, which are the reason for the low weight of our forged wheels. Even in critical driving situations, forged wheels offer the occupants optimum safety.

Step 1: The nozzle

A cast block more than 6 m long manufactured by OTTO FUCHS is the starting material from which a socket, which is precisely matched to the later wheel, is sawn off.

Step 2: Pre-forging

In the first forging stage, the nozzle is pre-forged into a rotationally symmetrical blank with a force of 4,000 tons.

Step 3: Design forging

In the second forming stage, the styling is pressed into the pre-forged blank under a 7,000 ton press, which gives the wheel its later appearance to a large extent.

Step 4: Punching

In the last forging stage with 800 tons of pressing force, the later ventilation hole windows and the hub bore are punched out and the burr of excess material sheared off at the outer circumference.

Step 5: Flow pressing

The outer edge of the blank is heated. The entire rim area, from outer to inner horn, is rolled out.

Step 6: Finishing

The final step is finishing: turning, drilling and deburring. Painting rounds off the complex process. Source: Material and Production: Otto Fuchs KG

Surface BiColor

In this process, the wheel is first primed and then completely painted. Now the surfaces, which are later to shine metallically bright, are turned off and then polished to a high gloss. Finally, a two-layer clear coat is applied, consisting of a polyester primer and the acrylic clear coat.

Test Procedures / Safety

After their design, the first sample rims are manufactured under real production conditions. These must undergo a multitude of tests. Among other things, the strength is tested. The "rim life" is simulated in the bending circumferential test. Every AC Schnitzer rim must withstand this intact in order to be allowed to be produced and sold at all. This is followed by vehicle-specific tests, including test installations with check of unobstructed movement and driving tests on public roads and on race tracks. Only after these procedures our rims receive their homologation, i.e. the approval to be used in road traffic. Wheels are safety-relevant components. Therefore, they are checked and tested with the greatest care. This starts with the first chemical material tests and ends with hard testing machine endurance runs: - § 30 StVZO wheel guideline - ECE R124 - Bending-rotation tests - 90° impact test - unwinding tests

Uniqueness of the lightweight forged rims Type V:

Made in Germany
Weight-optimized
Developed exclusively for BMW vehicles
With exclusive AC Schnitzer and forged lettering
Compatible with standard RDC system - also available as a complete wheel
Warranty 2 years
Production monitored according to ISO standard
BiColor optionally also in Anthracite
KDS mount for wheel alignment according to BMW specification is available

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