Bones Bushings Yellow/White (Medium)
The HardCore insert in the center of the BONES hubs connects the two sides of each hub together, bonding them to the HardCore insert. When the hanger strap squeezes one side of a HardCore hub, that side of the hub reacts like a normal hub, but the chemical bond between the HardCore and the cushion prevents the hub from squeezing out the other side. It actually increases twist resistance because it is held in place by the HardCore insert. This basically means that both sides of the BONES HardCore hub resist your turning force. That's why we call BONES Bushings the first double-acting truck bushings.