The Rocky Mounts HotRod is a do-it-all truck mount for bikes with 12x100mm, 15x100mm, and Boost 15x110mm front wheel thru-axles. Rocky Mounts CNC'd an aluminum body to accept their proprietary thru axles and all three popular thru axle sizes are included. Simply undo the set screws and swap out the axles if you want to run a different size thru axle. The fork mount is constructed of 6063 aluminum and anodized to a high luster. Constructed of 6063 aluminum for durability and strength Includes 3 interchangeable axles: 12x100mm, 15x100mm, and Boost 15x110mm Mounting hardware not included but 2 holes (spaced 96mm apart) in fork mount base accept 6mm or 1/4" bolts Weight limit: 35 lbs.