Bicycle hub axle for REAR BMX sealed bearing hubs (such as Superlace, Racelace, etc. and other hubs from the 1980's).
Dimensions: 155mm overall length - 79mm center section (inside edge of bearing to inside edge of bearing). Bearing seat is 3/8" (these are typically used with R6 bearings)
Threading: 3/8" x 26T
Material: Chromoly steel