Pro Duro Bubble Bushings, Cream

What a bushing actually does
The bushing is the soft piece your kingpin runs through, and it is the part that decides how freely your trucks lean and turn. Swap to a softer bushing and the board carves easier and reacts to small inputs; go firmer and it holds its line and feels more locked-in on landings. This is the real tuning knob, not the kingpin nut you crank down.

Three durometers, three feels
51A is extra loose, the most responsive tuning we offer, with the widest range of truck movement. 61A is loose and gives the same feel as our OG bubble bushings, just with more consistent shape from one bushing to the next. 71A is medium, a tighter setup that makes your movements crisper and steadier for dialing in tricks. Durometer is on the A scale here, so a lower number means softer.

Why Pro Duro over O-rings
These replace the stock O-rings on most trucks. O-rings flatten out and lose their feel over time; the Pro Duro shape is molded from silicone to hold its form, so the turn you set up on day one is the turn you keep. Same bubble profile riders already know, built to last longer.

Designed after real skate bushings
The shape takes after conical skateboard bushings, scaled down for fingerboard trucks. That conical profile is what gives the smooth, progressive lean instead of the abrupt feel you get from a worn O-ring.

Fits all major fingerboard truck brands, including wider-kingpin trucks like Dynamic and Y-Truck.

Which durometer should I pick?
Start with the turn you want. 51A is loosest. 61A is the classic middle. 71A is firmest. Softer leans and reacts faster, firmer stays crisp and stable. If you are unsure, 61A is the safe middle.

Does this actually change how my trucks turn, or do I just adjust the nut?
The bushing is what changes the turn. The kingpin nut adds a little tension, but the parts that tune a truck are the bushings, the pivot, and the O-rings. Cranking the nut is not the same as running the right durometer bushing.

Do these replace my O-rings?
Yes. Pro Duro Bubble Bushings are made to take the place of the O-rings on your trucks. You get a more consistent shape and a turn that holds up longer than a standard O-ring.

Will these fit my trucks?
They fit all major fingerboard truck brands, including wider-kingpin trucks like Dynamic and Y-Truck. The pivot cups fit every brand except Blackriver.

How many bushings come in a set?
You get one pair, which is enough to tune a single truck. A standard fingerboard setup uses two trucks, so grab a second pair if you want to tune the whole board to the same feel.

Are these safe for a younger kid?
These are small parts and a choking hazard, so they are not suitable for children under 14.