Yokomo Z4-300RFS Rear Suspension Spacer (Front) set for YZ-4  [Z4-300RFS]

Rear suspension front spacer for YZ-4

This spacer set fits the front side of the rear suspension mount on the YZ-4 chassis and is supplied as a replacement/upgrade accessory for RC-scale tuning. The parts act as spacing shims that change the clearance at the mount point, allowing adjustments to how the rear suspension sits relative to the chassis.

Installation is straightforward: the spacers are placed at the front-facing location of the rear suspension mount where existing mounting hardware captures them. The set is intended to be used with the original mount assembly, and installation should be checked for secure seating and free movement of suspension links after fitting.

In setup and tuning the spacer set is a minor geometry tool rather than a primary suspension component. Changing the spacer thickness or number alters the effective spacing at the mount and can influence rear roll behaviour, preload and the initial pivot location; use small changes and test on-track to evaluate effects.