Yokomo SD-118RSA Battery Mount Spacer for Drift Chassis Height Adjustment  [SD-118RSA]

Quick overview of the battery spacer

The SD-118RSA spacer set is an under-plate accessory that changes the vertical position of the battery mounting plate. It lets you raise or lower the battery in small steps so you can alter centre of gravity and clearance without cutting or modifying the main battery tray.

In practice, the spacer is fitted beneath the battery mount plate to nudge the battery position relative to the chassis. That small vertical change influences weight distribution and body clearance on drift setups, giving a simple tuning option for balance and handling. Remember this is an accessory for tuning, not a replacement for primary suspension or structural parts.

Installation is straightforward: remove the existing battery mount fasteners, place the spacer(s) under the plate, then reattach the fasteners while ensuring correct thread engagement. After fitting, check for any new interference with body mounts, wiring, or other components. Make small adjustments and test progressively to evaluate handling differences.

Practical tips: use the spacer to refine low-speed balance or gain a slight increase in ground clearance under the battery plate. Because mounting patterns and screw lengths vary between chassis, verify the footprint and screw length before final assembly.