The 3Racing F109-04/RK Hop-Up Option Rebuild Kit delivers a curated set of components intended to return an F109 chassis to a consistent baseline. Focused on race use, the kit addresses wear-critical items to maintain predictable handling and reduce setup variance between meetings.
Parts in this kit are selected to align with typical F109 geometry and wear patterns, aiding in repeatable suspension behaviour and reliable component life. Correct installation and a post-rebuild setup verification are recommended to optimise handling and tyre performance.