Yokomo YZ-S5RW2 Rear shock shaft (2pcs) for Works'91 TeamSpec rear shock shaft for YZ-W91 series  [YZ-S5RW2]

Rear shock shaft for Works'91 TeamSpec

This YZ-S5RW2 rear shock shaft from Yokomo is an RC-scale replacement part supplied as a pair, designed specifically for the Works'91 TeamSpec setup. The unit preserves the original mounting interfaces while extending the shaft length and stroke compared to the previous version, a change intended to influence rear-end behavior on high-traction surfaces.

Compatibility is limited to the supported chassis listed below, so this shaft is intended for direct use in the rear shock assemblies of those models. The revised stroke increases suspension travel at the rear, which can help smooth weight transfer and improve traction in corner exit and mid-corner bite when used in appropriate setups.

Installation overview: the shafts install into the existing shock bodies and pistons of the supported chassis without chassis modification, replacing worn or original shafts to restore intended movement range. When tuning, consider spring rates and oil viscosity together with the shaft’s stroke change to achieve balanced rear grip and predictable handling.

Use this shaft when restoring Works'91 TeamSpec rear suspension geometry or when tuning for a smoother rear-end feel; verify compatibility with your YZ-W91 series chassis before fitting.