14mm Shock Shim Starter Kit

The 14mm Shock Shim Starter Kit by ALLSTAR PERFORMANCE is an essential tuning component for serious suspension builders and racing mechanics who demand precision control over shock absorber valving characteristics. Whether you're dialing in a street-driven vehicle's ride quality or fine-tuning a competition platform, shock shims are the fundamental building blocks of custom damper calibration. This starter kit provides the foundational shim sizes needed to begin experimenting with compression and rebound damping rates without the expense of purchasing full assortments upfront.

Shock shims operate as thin, precisely-sized metal discs that stack within the damper's valving stack to regulate oil flow rates through internal ports, thereby controlling how quickly the shock absorber compresses and extends. The 14mm diameter specification matches industry-standard mono-tube and twin-tube shock applications, allowing mechanics to adjust spring rates, bump compliance, and rebound stiffness independently of spring choice. ALLSTAR PERFORMANCE's shims are manufactured to tight tolerances, ensuring consistent performance across multiple shock rebuild cycles and maintaining accuracy in damping curves that can otherwise be lost through wear or improper assembly.

This starter kit is ideal for mechanics building custom suspension systems for road course platforms, autocross competitors, or anyone performing in-house shock rebuilds and valving modifications. The compact 5.55 x 0.9 x 9 inch package fits easily in any shop workbench area and provides immediate access to core shim sizes for common applications. Compatible with most aftermarket and OEM shocks using 14mm damper bodies, this kit serves as the logical first step before investing in expanded shim assortments for specialized tuning applications.