The Yokomo BM-414 king pin set includes four standard pins for the B-MAX2 and B-MAX4 touring chassis. These pieces are supplied as direct replacement items to renew steering pivot points after wear or intensive use.
Service is simple for those accustomed to front knuckle maintenance: remove the knuckle assembly, extract the worn pins, then press or fit the replacement king pins into the pivot bores while adhering to the chassis manufacturer's clearance guidance. After installation, verify steering geometry and check that the pivots move freely without binding.
In terms of setup, king pins influence steering characteristics and front-end wear patterns. When replacing them, also check related components such as bushings, bearings, and screws to keep handling predictable during practice or competition.
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