Old Man Mountain Thru Axle Fit Kit

Standard racks often rely on small frame eyelets that can be prone to stress or failure under heavy loads. This kit transfers the weight directly to the thru axle, which is structurally designed to handle significant force, effectively bypassing your frame's eyelets entirely.

This kit is compatible with bikes using a 12mm rear thru axle with a 1.5mm thread pitch and an axle length between 169mm and 178mm. Before purchasing, you must verify your bike's current axle specifications to ensure they match these dimensions.

Yes, the system is designed for modularity. As long as your other bike also uses a 12mm rear thru axle with the same thread pitch and length requirements, you can swap the kit over without needing to replace the entire rack setup.

Yes, the kit comes with the precision-engineered axle, mounting pucks, and all the necessary hardware required for a complete installation. You won't need to source additional bolts or adapters to get your rack mounted.

When installed correctly, this kit increases your rear rack's load capacity to 70 lbs. This makes it an ideal solution for heavy-duty touring, bikepacking, or carrying significant gear for daily commuting.