• This thru axle is for attaching an Old Man Mountain rack to the rear of a bike that has a 12 mm thru axle with 1.0 mm thread pitch and 167, 160, or 154 mm length with included spacers. 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 167 mm, but can be shortened to 160 mm or 154 mm with the included spacers.
  • This thru axle is for attaching an Old Man Mountain rack to the front of your road or gravel bike that has a 12 mm thru axle with 1.75 mm thread pitch and 122 mm length. We partner with The Robert Axle Project to supply our axles.
    • Diameter of thru axle is 12 mm.
    • Thread pitch is 1.75 mm.
    • Length is 122 mm.
  • This thru axle is for attaching an Old Man Mountain rack to the front of your road or gravel bike that has a 12 mm thru axle with a 1.5 mm thread pitch and length of 120-125mm. We partner with The Robert Axle Project to supply our thru axles.
    • Diameter of thru axle is 12 mm.
    • Thread pitch is 1.5 mm.
    • Length is 120 to 125 mm with included 5 mm spacer.
  • This thru axle is for attaching an Old Man Mountain rack to the front of your road or gravel bike that has a 12 mm thru axle with a 1.0mm thread pitch and a length of 119 or 125mm. 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.
    • Length is 119 or 125 mm with included 6 mm tapered spacer.
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