This thru axle is for attaching an Old Man Mountain rack to the rear of your bike that has a 12 mm thru axle with 1.0 mm thread pitch and 184 mm or 175 mm length using the included spacer. We partner with The Robert Axle Project to supply our thru axles.
  • Diameter of thru axle is 12 mm.
  • Thread pitch is 1.0 mm.
  • True length of axle is 184 mm, but can be shortened to 175 mm with the included spacer.