New Twin 5-spoke Mold-Form Forged Version.
All the letters of the logos are embossed with 3D milling machines. Its difficult to produce clear letters in the forging process, which creates a bottleneck in production. To overcome this, YOKOHAMA relies on 3D milling machines to emboss the letters. All the spokes on MODEL F50 wheels have diamond-cut faces so letters have the clear contrast so essential to wheels of such a premium caliber.
The side cuts on the spokes are done with a 3D milling machine after the mold form forging process is finished. On MODEL F50 wheels, the milling is done after enameling, making the side cuts stand out by showing the wheels bright aluminum finish. The precise 3D milling is another testimony of the high quality of Made In Japan.
F50 wheels have F-1, F-2, and F-3 faces, each of which has a different degree of concave to the spokes. F-1 seems flat, and the F-3 seems to draw you in with approximately 10mm difference in center depth. Width, inset, and caliper clearance all must be meticulously engineered to create these precision wheels.