• This thru axle is for attaching an Old Man Mountain rack to the rear of your fat bike that has a 12 mm thru axle with 1.0 mm thread pitch and 229 mm or 217 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 229 mm, but can be shortened to 217 mm with the included tapered spacer.
  • This thru axle is for attaching an Old Man Mountain rack to the rear of your fat bike that has a 12 mm thru axle with 1.5 mm thread pitch and 209 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 209 mm.
  • This thru axle is for attaching an Old Man Mountain rack to the rear of a fat bike that has a 12 mm thru axle with 1.5 mm thread pitch and 229 mm or 223 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 229 mm, but can be shortened to 223 mm with the included spacer.
  • This thru axle is for attaching an Old Man Mountain rack to the rear of a fat bike that has a 12 mm thru axle with 1.75 mm thread pitch and 209 mm. 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 209 mm.
  • This thru axle is for attaching an Old Man Mountain rack to the rear of your fat bike that has a 12 mm thru axle with 1.75 mm thread pitch and 229 mm or 217 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 229 mm, but can be shortened to 217 mm with the included spacer.
  • OMM_Rack-Side-View_1080p-1
  • Old Man Mountain rack for fat bike - Fat Sherpa
    Sorry we are out of stock at this time. We're thrilled by the growth we've seen in people wanting to do more with their bikes!  We are currently focusing all production on our Classic Sherpa racks and do not have an ETA on Fat Sherpas for the immediate future. Thanks for your patience.
  • Fit Kit #715 is for mounting an Old Man Mountain Fat Sherpa to the front of a fat bike with a 15 mm thru axle. 
    • Thru Axle: 15 mm thru axle with 198 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 the rack to the fork.
    • Pair of OMM Pucks. Mount to the fork to provide an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • This is the same protective tape that comes in every Fit Kit.
  • Fit Kit #806 is for mounting an Old Man Mountain Fat Sherpa to the rear of a fat bike.
    • Thru Axle: 12 mm thru axle with 209 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 14" extenders. Stabilize and level the rack.
    • Pair of OMM Pucks. Mount to the seatstays to provide upper attachment points for the rack.
    • Stainless steel mounting hardware.
  • Fit Kit #807 is for mounting an Old Man Mountain Fat Sherpa to the rear of a fat bike.
    • Thru Axle: 12 mm thru axle with 217 to 229 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.
    • Pair of OMM Pucks. Mount to the fork to provide an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • Fit Kit 808 is for mounting an Old Man Mountain Fat Sherpa to the rear of a fat bike.
    • Thru Axle: 12 mm thru axle with 223 to 229 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 14" extenders. Stabilize and level the rack.
    • Pair of OMM Pucks. Mount to the seatstays to provide an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • Fit Kit 809 is for mounting an Old Man Mountain Fat Sherpa to the rear of a fat bike.
    • Thru Axle: 12 mm thru axle with 209 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.
    • Pair of OMM Pucks. Mount to the seatstays to provide upper attachment points for the rack.
    • Stainless steel mounting hardware.
     
  • Fit Kit #815 is for mounting an Old Man Mountain Fat Sherpa to the rear of a fat bike.
    • Thru Axle: 12 mm thru axle with 217 to 229 mm length and x 1.0 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.
    • Pair of OMM Pucks. Mount to seatstays to provide an upper attachment point for the rack.
    • Stainless steel mounting hardware.
  • Not just any zip tie!
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