OfficinaRC Black Brass Smart Shim 3x9x2.5 mm - (8) OFC-BBSS-3925

If you have ever lost a race because your suspension felt inconsistent lap after lap, you already know how much the small stuff matters. These are not just shims. The OfficinaRC Black Brass Smart Shims are precision machined to 3x9x2.5 mm and come in a pack of eight so you have exactly what you need to dial in your build without hunting for spares mid-session.

Brass is the material of choice here for good reason. It sits heavier than aluminum, which means you can use these shims to fine tune your weight distribution right at the suspension points where it counts most. Whether you are building a touring car, a pan car, or a 1/10 buggy, getting that low center of gravity dialed in can be the difference between podium pace and chasing the lead all day.

The black finish is not just cosmetic. It gives you a clean, professional look under the body while also offering a layer of corrosion resistance that bare brass simply does not have. These shims stack cleanly, seat flush, and hold their position without creeping under load.

OfficinaRC builds for racers who pay attention to detail. If you are the kind of driver who notices when something is off by half a millimeter, these shims were made for you.

Pack of 8. Size: 3x9x2.5 mm. Material: Black Brass.