Kyosho IS119-52.5 52.5mm Suspension Shaft 2pcs

A pair of 52.5mm suspension shafts for Kyosho's Inferno NEO ST and ST-RR Evo truggies.

Suspension shafts, also called hinge pins, are the pins the arms pivot on. They carry every load the suspension generates through a small diameter, and they have to stay perfectly straight to work properly. A bent shaft makes the arm bind so it no longer moves freely through its travel, and the symptoms mislead: the suspension feels stiff, damping goes inconsistent, and most people chase the problem through shocks and springs before thinking to check the pins.

On a truggy those loads are higher than on a buggy because the car is heavier and the tires larger, so pins take more abuse.

They wear as well as bend, and a worn shaft lets the arm develop play, which shows at the wheel as camber and toe that shift under load.

Length is the only thing distinguishing this from its siblings, so ordering the right one matters. Note that Kyosho's own catalogue lists this part without the decimal point, as IS119-525, which is worth knowing when cross-referencing. Two are supplied.