Parts & Accessories

Fit Kit #817.R is for mounting an Old Man Mountain Sherpa Classic on to the rear of a bike with a 12 mm thru axle. Fit Kit 817.R contains all the parts to mount the rack to the rear of your road or gravel bike with a 12 mm thru axle: 12 mm thru axle with 154, 160, or 167 mm length and 1.0 mm thread pitch, pair of 5? dropouts, pair of 14? extenders, 27.2 mm seat post mount, clear protective tape, and all mounting hardware. We partner with The Robert Axle Project to supply our thru axles.