Bones Hardcore Medium Bushings are a 91A skateboard-truck bushing set for riders who want a responsive, balanced turn without moving all the way to a soft or hard setup. This exact pack uses black high-rebound urethane with contrasting yellow Hardcore inserts and is supplied as one complete bushing set.
The patented double-action construction chemically bonds each urethane cushion to its rigid center insert. According to Bones, that connection keeps both sides of the bushing engaged as the truck turns, helping the cushions return predictably instead of shifting away from the kingpin. The design requires no break-in period, so the set can be installed, adjusted to preference, and skated immediately.
- Hardness: medium 91A
- Color: black with yellow core inserts
- Construction: high-rebound urethane with chemically bonded Hardcore insert
- Use: standard skateboard truck replacement or tuning
- Package: one complete set
Fit note: tighten the kingpin only enough to achieve the steering response you want. Over-compressing any bushing can limit turn and shorten its useful life. These are general skateboard bushings and are not marketed as a longboard-specific component.