Factory Team have released these new shock pistons for Associated vehicles to expand your repertoire of tuning options. The eight 1.3mm pre-drilled holes, work with the tapered design to create an ideal piston with progressive dampening. To cut out the confusion of sorting them out, they’ve cut ‘1.3’ into the flat side of these pistons for easy identification. The team engineers suggest using them with 30–35 weight silicone oil. Fits 16mm shocks on RC8B, RC8T, RC8T-CE, SC8e, SC8e RTR.