Yokomo S4-010B63A Center 63.5mm Bone for YZ-4S  [S4-010B63A]

Center bone for YZ-4S

This Yokomo S4-010B63A center bone is an RC-scale replacement link sized at 63.5mm intended for use with the YZ-4S platform. It serves as an optional center drivetrain component that helps rebuild or restore the centre linkage geometry without altering other driveline parts.

Contents listed in source note a single unit, presented as 1 pcs in the supply. The part is supplied for direct component replacement where the original center link needs swapping during routine maintenance or chassis setup sessions.

Installation consideration: the bone is designed to fit existing mounting points on compatible YZ-4S assemblies, so checks for alignment and secure fasteners are the main setup steps. In tuning terms, replacing the center bone is a neutral change that supports repeatable drivetrain alignment and baseline adjustments rather than a performance upgrade by itself.