YZ-4SF Aluminium Slipper Plate Upgrade - Yokomo S4-303PA  [S4-303PA]

YZ-4SF metal slipper plate overview

This aluminium slipper plate is offered as a direct replacement for the YZ-4SF slipper assembly, serving as an alternative to the stock part. It swaps into the slipper stack to create a solid metal contact surface, which helps promote repeatable engagement and consistent drivetrain feedback.

Installation is straightforward for those experienced with YZ-4SF servicing; the plate uses the standard slipper assembly mounting points and existing hardware. Take care to align parts accurately during reassembly to prevent unwanted preload or lateral binding.

Tuning note: fitting a metal slipper plate changes flex and wear behavior versus original material, so expect altered slipper feel that teams can use to dial slip onset and traction transition on different 1/10 surfaces.