PSM RC8B3 20mm aluminium spring cups
Coming from PSM and made for the Team Associated RC8B3 are 20mm aluminium spring cups. Machined from high-quality 7075 aluminium and sporting a black semi-gloss coating for anti-wear characteristics and looks the spring retainers work with all 20mm diameter shock springs, making for a larger selection of usable spring makes and types. On top of this does a longer lower section improve the cup’s support on the lower ball ends while machined holes allow dust and moisture to exit the retainers for reduced dirt build-up.
Source: PSM [psm-rc.com]