The design of these inline style Springers is styled after the forks as originally used on 1936 thru 1945 Big Twins. Unlike the original, these forks do not have any forged steel parts and consequently do not have the typical forged looks with its rough surface. These forks feature 3 5/8" (9.2 cm) rockers, an upper triple tree clamp with a 4 3/4" (12.1 cm) center to center distance, threaded 1/2-20 UNF, steering stem with top nut, threaded fender mount holes on the inside of the fixed forks, and a 3/4" (19.05mm) diameter front wheel axle with acorn nuts. Forks can be used with Narrow Glide, Mid Glide and Wide Glide hubs. Length is measured from the lower steering head bearing location to the center of the wheel axle, add 8 7/8" (22.5 cm) to calculate total fork length.