Old Man Mountain Thru Axle Fit Kit

This kit is designed specifically for bikes with a 12mm rear thru axle and a 1.0mm thread pitch. You will need to measure your current axle length to ensure it falls within the 154-172mm range supported by this kit.

Frame eyelets are often not designed to handle heavy touring loads and can be a point of failure. This thru axle system transfers the weight of your gear directly to the axle itself, which is structurally much stronger and safer for heavy loads.

Yes, this kit replaces your stock rear thru axle. It functions as both the structural axle for your wheel and the mounting point for your rack, ensuring a secure and integrated connection.

Yes, that is one of the primary benefits. Because the rack mounts to the axle rather than the frame, you can swap the rack between bikes as long as both bikes are equipped with a compatible Old Man Mountain fit kit.

The 70lb capacity is rated for standard touring and bikepacking use. While the axle is robust enough to handle that weight, always ensure your rack and panniers are also rated for that load and that your bike's handling remains stable with the added weight.