20"/21" BBS FI-R 2013+ Porsche GT3 RS (991)

Minimum mass, maximum stability: The essence of what sports car drivers want is now available on our shelves for immediate delivery in the forged BBS FI-R wheel.

The FI-R wheel with TÜV certificate is firstly available for Porsche 991 GT3 (centerlock) as well as for the BMW F80 M3/ F82 M4. With finishes available in platinum silver and satin black as well as polished ceramic as an option, these wheels are offered in the following dimensions: 9.0 x 20 and 12 x 20 inches with centerlock. An FI-R wheel for the Porsche 991 GT3, mounted on the front axle in the dimension 9 x 20 inches, weighs in at just around 7.9 kilograms. The counterpart in 12 x 20 inches for the rear axle weighs only 9.2 kilograms with a wheel load of 620 kilograms.

Forging Technology

Forging is a non-cutting forming process for material in a heated, solid condition. In order to generate the highest degree of material density and weight reduction at top performance from BBS’ high-strength and durable aluminum or magnesium alloys, they are further enhanced in a complex forging process. This entails placing the heated star hub or the entire wheel blank in a press and compressing it in several work steps at 5000 to 8000 tons of closing pressure to further increase the density of the material in a special form known as a matrix. In between the individual work steps, the blank is repeatedly heated to approx. 400 degrees centigrade (752ºF). As a result an optimal material structure is achieved particularly at the areas of high strain, the wheel can be dimensioned smaller, and is thereby lighter in weight.

100% Weight Optimized

Because the spokes are back-milled, the optimal ratio between weight and stability is achieved for a light alloy wheel. This is achieved using a special CNC milling process, where the lateral parts that hold the wheel spokes are not relevant for stability, and are removed to reduce the weight of the wheel‘s rotating mass.

Applications: 2013+ Porsche GT3 RS  (991-chassis)