This RC caster block hub set fits the Element Enduro Trail Truck chassis and is identified as model JR-EE02-BK. The kit swaps the stock caster block area for machined aluminium pieces to alter steering rigidity and chassis feedback while avoiding claims about full-vehicle compatibility.
Compatibility is limited to the Element Enduro Trail Truck as listed; use this set when a firmer caster block mounting point is needed to influence steering response on trail-focused setups. Do not assume fitment with other models unless explicitly stated by the retailer.
Fitting is a direct-replacement method: remove the current caster block components, reuse any suitable fasteners and steering links, install the aluminium hub components into the original mounting points, and confirm wheel and suspension clearances. After installation, check steering travel and toe alignment before operation.
From a tuning standpoint this part increases local stiffness at the front knuckle and can change how steering and suspension inputs are transmitted. Fit with well-maintained ball bearings and revisit front preload to control handling changes and component wear.