The XRAY 303183-M rear lower arm fits X4 series models and uses Carbon Fiber Fusion to achieve a predictable flex profile. Its medium hardness smooths out inputs while retaining precise behaviour.
CFF construction allows the arm to flex under load in a controlled way, spreading forces along the part to enhance mechanical traction and increase steering feel on asphalt circuits.
Chosen for warmer track environments, the medium variant gives more give than hard arms, making the car easier to drive and less twitchy when surface temperatures climb.
This component is specifically shaped for the left rear position on X4 cars, ensuring accurate fitment and consistent suspension geometry during use.
Copyright © 2008-2025 rcjaz.com.au All rights reserved