Rollerbones Double Action Cushions - Medium 91A - Rollerbones have taken the concept behind the Bones hit Skateboard cushions "The Bones HardCore" and applied that technology to their Rollerbones Double Actions Cushions. Using a more advanced rounded shape you will instantly notice positive improvements in the performance of your trucks.

- There is no break-in period. Just put them in, adjust and skate.
- Your trucks will be more responsive.
- Increased truck performance.
- Improves your skating experience.
- Your turns will be smooth and positive, not floppy or rigid.
- Sold as an 8-pack
- 3 Hardnesses: Hard Bushings: 96A, Medium Bushings: 91A

When you turn a normal truck, the hanger web puts pressure on one side of each bushing (top and bottom). This squeezes that side and pushes the other side of each bushing away from the kingpin. We call this a single action bushing because only one side of the bushing works for you at a time.

The HardCore insert in the center of BONES bushings connects the two sides of each bushing together by bonding them to the HardCore insert. This same technology is used in these Rollerbones Double Actions Cushions.

When the hanger web squeezes one side of a HardCore bushing, that side of the bushing reacts just like a normal bushing, but the chemical bond between the HardCore and the cushion keep the bushing from being squeezed out the other side. It actually increases the resistance to turning because it is held in place by the HardCore insert. This means basically that BOTH sides of the Rollerbones Double Action Bushing are resisting your turning force.

Tech Specs