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In 1993, BBS merged the gap between their three-piece forged wheel and one-piece cast wheel with the two-piece design found in the RSII, defining BBS as a pioneer in one-, two-, and three-piece wheels. BBS developed a magnesium forged wheel in 1994 for motorsports use, especially in Formula One, which was over 20% lighter than the standard cast ...
There are two types of forged wheels: one piece and modular. Modular forged wheels may feature two- or three-piece design. Typical multi-piece wheels consist of the inner rim base, outer rim lip and wheel center piece with openings for lug nuts. All parts of a modular wheel are held with bolts. BBS RS is one of the most famous three-piece ...
Construction of wire-spoked wheels is generally termed as wheelbuilding, so wheel construction refers to construction of non-wire wheels, e.g. wheels of cars and other heavier vehicles. Wheels are constructed in a wide variety of designs using different materials, but in the early 21st century, aluminum and steel are most often used, with steel ...
SSR Wheels (formerly known as Speed Star Racing Wheels) is a Japanese wheel manufacturer for both motorsport and aftermarket applications, headquartered in Osaka, Japan. The company is often credited as being the first to ever make a three-piece wheel with their MK-I wheel in 1971, and remains one of the most notable Japanese producers of ...
A forged magnesium wheel is 25 percent lighter than cast wheel. The main disadvantage of forged wheels is the high manufacturing cost. Owing to the typically high costs of finished wheels, forged wheels are still rarely purchased by non-professional drivers for regular road use.
Rally alloy wheel specialists Speedline Corse designed the alloy wheels, these are both wider and have a larger diameter on the rear wheels; 17 in (43.2 cm) wheels are fitted to the front and 18 in (45.7 cm) are fitted at the rear, with 255/55 ZR17 tyres at the front and 345/35 ZR18 tyres at the rear.
Most train wheels have a conical taper of about 1 in 20 to enable the wheelset to follow curves with less chance of the wheel flanges coming in contact with the rail sides, and to reduce curve resistance. The rails generally slant inwards at 1 in 40, a lesser angle than the wheel cone.
One wheel in front and all three wheels tilt, referred to as 1F3T (i.e. one front three tilt). An example can be seen in the Rose-Hulman Ragnarök pictured below and the UWM PantherTrike pictured above. Two wheels in front and only the single rear wheel tilts, referred to as 2F1T (i.e. two front one tilt). [9]