• 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.
  • Fit Kit #814.R is for mounting an Old Man Mountain Sherpa Classic on to the rear of a bike with a 12 mm thru axle.
    • Thru Axle: 12 mm thru axle with 172 or 178 mm length and x 1.5 mm thread pitch.
    • Pair of 5" Dropouts. Attach the rack frame to thru axle to fit all road/gravel/cross wheel sizes.
    • Pair of 14" extenders. Stabilize and level the rack.
    • A 27.2 diameter seatpost mount. Allows for an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • Fit Kit #703 is for mounting an Old Man Mountain Sherpa to a fork with a 15 mm thru axle.
    • Thru Axle: 15 mm thru axle with 158 mm length and M15 x 1.5 mm thread pitch.
    • Pair of 5" Dropouts. Attach the rack frame to thru axle to fit all fat bike tire sizes.
    • Pair of 6" extenders. Stabilize and level the rack.
    • Pair of OMM Pucks. Mount to the fork to provide an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • This thru axle is for attaching a rack to the rear of a bike that has a 12 mm thru axle with 1.5 mm thread pitch and 178 mm or 172 mm length. We partner with The Robert Axle Project to supply our thru axles.
    • Diameter of thru axle is 12 mm.
    • Thread pitch is 1.5 mm.
    • True length of axle is 178 mm, but can be shortened to 172 mm with the included spacer.
    • Includes hardware for attaching the rack.
  • Fit Kit #705.R is for mounting an Old Man Mountain Classic Sherpa to a fork with a 12 mm thru axle.
    • Thru Axle: 12 mm thru axle with 120 to 125 mm length and x 1.5 mm thread pitch.
    • Pair of 5" Dropouts. Attach the rack frame to thru axle to fit all fat bike tire sizes.
    • Pair of 6" extenders. Stabilize and level the rack.
    • Pair of OMM Pucks. Mount to the fork to provide an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • Fit Kit #801.R is for mounting an Old Man Mountain Sherpa Classic on to the rear of a bike with a 12 mm thru axle.
    • Thru Axle: 12 mm thru axle with 167 or 174 mm length and x 1.75 mm thread pitch.
    • Pair of 5" Dropouts. Attach the rack frame to thru axle to fit all fat bike tire sizes.
    • Pair of 14" extenders. Stabilize and level the rack.
    • A 27.2 diameter seatpost mount. Allows for an upper attachment point for the rack.
    • Stainless steel mounting hardware.

Title