Yokomo ZR-042M Molded Inner for Touring Car Medium (4pcs)  [ZR-042M]

Molded inner for touring car tires

This is an RC-scale molded inner designed for touring car tires, supplied as a set of 4pcs. It is intended primarily for asphalt use where added internal mass and controlled rebound change the tire's contact behavior. The part increases tire grip through appropriate internal weight distribution and repulsive force characteristics, helping fine-tune lateral stability and mid-corner bite without altering external tire profiles.

Installation is straightforward for those familiar with touring car tyre work: the molded inner seats between the tyre and wheel as a replaceable insert to modify how the tyre responds to load and steering input. It is a tuning component rather than a permanent structural change, and is suitable for hobbyists making incremental adjustments to tyre performance on paved surfaces.

Supported Chassis MSR-BD11 / MSR-BD12 / MSR-BD12A.