Kyosho IF346-01 61mm Big Shock Case 2pcs

A pair of 61mm Big Bore shock cases for the long rear position on Kyosho's Inferno platform.

The case is the body of the shock, the cylinder the piston travels through, and it is a precision part rather than a simple housing. Its internal bore is the surface the piston and seals work against, so its finish and roundness determine whether the shock can hold oil at all. Scoring on that bore, whether from a bent shaft, a piece of grit that got past the seals, or simply many rebuilds' worth of wear, means the shock will never seal properly again no matter how many fresh O-rings you fit. It is the part most people replace last and often should replace first.

Cases also get dented and crushed in impacts, and one that is even slightly out of round binds the piston and gives damping that changes through the stroke.

At 61mm this is the long case used at the rear. Two are supplied, one axle's worth. This is the standard uncoated version; a Velvet Coating variant with a low-friction bore treatment is available separately. Fitment covers the Inferno MP9 T.K.I and the ST-RR truggies.