• 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 172 mm, 167 mm or 160 mm length. 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 172 mm, but can be shortened to 167 mm  or 160 mm with the included spacers.
  • 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.
  • 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 1.75 mm thread pitch and 180 mm or 174 mm length. We partner with The Robert Axle Project to supply our thru axles.
    • Diameter of thru axle is 12 mm.
    • Thread pitch is 1.75 mm.
    • True length of axle is 180 mm, but can be shortened to 174 mm with the included spacer.
  • 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 1.75 mm thread pitch and 198 mm or 192 mm length. We partner with The Robert Axle Project to supply our thru axles.
    • Diameter of thru axle is 12 mm.
    • Thread pitch is 1.75 mm.
    • True length of axle is 198 mm, but can be shortened to 192 mm with the included spacer.
  • This thru axle is for attaching an Old Man Mountain front rack to your mountain bike that has a 15 mm thru axle with a length of 148 mm. It fits all Rockshox forks (both standard and Boost.) We partner with The Robert Axle Project to supply our thru axles.
    • Diameter of thru axle is 15 mm.
    • Thread pitch is 1.5 mm.
    • Length is 148 mm.
  • This thru axle is for attaching a front Old Man Mountain rack to your mountain bike that has a M14 x 1.5 mm thru axle. We partner with The Robert Axle Project to supply our thru axles.
    • Diameter of thru axle is 15 mm.
    • Thread pitch is M14 x 1.5 mm.
    • Length is 138 mm.
  • This Fit Kit contains all the parts to mount an Old Man Mountain rack to the front of a fat bike with a 9 x 135 Quick Release Skewer: 9 x 100 QR Skewer, pair of 5" dropouts, pair of 6" extenders, pair of pucks, clear protective tape, and all mounting hardware
  • This Fit Kit contains all the parts to mount the rack to the rear of a bike with a 10 x 135 mm hub skewer: 10 x 135 mm QR Skewer, a pair of pucks, clear protective tape, and all mounting hardware.
  • If your bike has eyelet mounts on the front or rear dropouts, this kit will fit your bike. Keep in mind our racks are rated to 70 lbs only when mounted to the thru axle. Eyelet kits are rated to 45 lbs, which should be more than enough for most adventures, but does not take full advantage of the carry capacity of our racks when mounted to our thru axles.
  • This Fit Kit contains all the parts to mount the rack to the rear of a bike with a 10 x 135 mm hub skewer: 10 x 135 mm QR Skewer, pair of 5" dropouts, pair of 14" extenders, pair of pucks, clear protective tape, and all mounting hardware.
  • Old Man Mountain was born in 1996 from the need to mount racks on bikes without traditional mounting points and make every bike capable of doing more. Our Fit Kits also have some key benefits over eyelet mounting.

    • Fit Kits protect your bike. Not all bike eyelets are meant for racks, most are only made for fenders or have very low weight limits. Axle mounting protects your frame.
    • Need to carry more gear? Axle mounting increases our rack's load capacity to 70lbs/33kg.
    • Want to move your rack between multiple bikes? Fit Kits make it easy to swap between bikes or front and rear mounting with just a few bolts.
  • Old Man Mountain was born in 1996 from the need to mount racks on bikes without traditional mounting points and make every bike capable of doing more. Our Fit Kits also have some key benefits over eyelet mounting.

    • Fit Kits protect your bike. Not all bike eyelets are meant for racks, most are only made for fenders or have very low weight limits. Axle mounting protects your frame.
    • Need to carry more gear? Axle mounting increases our rack's load capacity to 70lbs/33kg.
    • Want to move your rack between multiple bikes? Fit Kits make it easy to swap between bikes or front and rear mounting with just a few bolts.
Go to Top