Treal Hobby Axial SCX24 1.0" Brass Beadlock Wheel Hub Spacers. Constructed from high quality CNC machined heavy brass, these optional bead-lock wheel hub spacers are intended for the Axial SCX24 and AX24 micro rock crawlers platforms to enhance durability and reliability and add 14g of total unsprung weight to provide the ultimate stability and crawling performance.