The Yokomo BM-414 kit provides four standard king pins designed for B-MAX2 and B-MAX4 RC touring cars. These parts are intended to replace worn pivot pins and restore proper steering movement after normal wear from track or club use.
Fitting is familiar to hobbyists who service front knuckles: detach the knuckle, remove the old pins, then press or fit the new king pins into the pivot bore while respecting the chassis maker's clearance specifications. Recheck steering alignment and ensure there is no binding through the full pivot arc.
Replacing king pins can alter steering response and affect wear characteristics at the front end. When renewing pins, examine adjacent components such as bushings, bearings, and mounting screws to guarantee a balanced maintenance pass and consistent handling.
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