Fork mounts remain the most secure way to haul bikes in a truck bed, and sometimes the simplest solution is the right one. The Dirtbag from Kuat strips the concept down to essentials: a welded steel block with a precise cylinder that accepts your fork's thru-axle, bolted permanently wherever you need it. No moving parts, no adapters to lose, no elaborate clamping mechanisms. Remove your front wheel, drop the fork into the mount, thread your own thru-axle through, and drive.

This particular model fits the 15mm x 100mm thru-axle standard found on most non-Boost mountain bikes. The axle diameter and hub spacing have to match exactly for the fork to seat properly and the axle to thread through cleanly. If you're running a Boost front end (15mm x 110mm), a road bike with 12mm x 100mm, or a fat bike setup, Kuat makes Dirtbag variants for those standards as well. Buying the correct size upfront matters more than versatility here, and at this price point, picking up a second mount when you change bikes costs less than a multi-adapter system.

The two-bolt base plate measures roughly 1-3/4" by 4-5/16" and can attach to any flat surface you can drill through: truck beds, van floors, trailer decks, camper shells, or cargo carriers. Kuat includes a drilling template to mark your holes accurately, though you'll need to source your own mounting hardware appropriate to your surface material. Steel construction handles the vibration and load transfer that comes with highway miles and dirt roads, and the angled cylinder positions your fork for easier wheel removal when you reach the trailhead.... Read More