Yokomo Z4-300FS 1.0m Non-Chamfer Front Spacer for YZ-4  [Z4-300FS]

Adjusting roll centre with the Z4-300FS

This spacer inserts between the YZ-4 front suspension mount and the chassis to tweak roll centre geometry. It is engineered to change suspension behavior without altering existing mount points or chassis holes.

The unit is marked Non-Chamf and identified as 1.0m in the product name. Positioned under the front mount, it raises or lowers the effective pivot point, which will modify body roll and initial turn-in characteristics on track.

Installation is straightforward: locate the spacer under the suspension mount and secure with the original bolts. Once fitted, recheck wheel alignment and suspension articulation to confirm proper fit and symmetry.

Durability note: small adjustments to roll centre can shift tyre loading and front bite. Use the spacer incrementally and record changes to isolate its impact on handling.