Black Rear Suspension Arms for Arrma 4S (2) (RPM80742)

RPM Black Rear A-arms for Arrma 4S models, including Kraton and Outcast 4S BLX, replace the stock rear suspension arms to reduce slop and deliver crisper steering with more consistent camber, caster, and toe settings.

These rear A-arms come as a pair, with an outward-positioned second shock mount hole that creates a lower-profile suspension and helps drop ride height for improved cornering stability and a lower center of gravity. Nearly 25% thicker than stock and molded from an engineering-grade nylon blend, they’re built to withstand hard riding and keep performance reliable when it counts.