Kyosho LA422-15 - Stabilizer Bar (?1.5)(SB/ZX7.5/RB7.5)  [KY-LA422-15]

Stabilizer bar function and fit

This Kyosho LA422-15 stabilizer bar is an RC-scale anti-roll component intended to affect chassis roll response and balance on compatible touring car platforms. It is supplied as a single replacement/upgrade part and is described by the original part string as (?1.5)(SB/ZX7.5/RB7.5), indicating a 1.5-series specification for the listed fitments.

The component's role is tuning-focused rather than structural: fitting a thicker or thinner stabilizer bar changes lateral weight transfer during cornering, which alters understeer/oversteer tendencies without modifying suspension geometry. Use it alongside sway links and standard suspension tuning steps to refine handling for specific track surfaces and driving styles.

Installation is typical for RC touring car stabilizer bars: remove the existing bar and replace with this unit using the vehicle's original mounts and linkage hardware. Check link lengths, ball-ends, and mounting points for free movement and correct preload, and verify that end points do not bind through full suspension travel.

For hobbyists seeking predictable roll control adjustments, this LA422-15 stabilizer bar offers a direct swap for the listed chassis codes, allowing incremental tuning without changing primary suspension components.