A steel shim is the thin, flat ring that sets clearance, preload, chainline, valve opening or bearing position inside a vehicle. It is small, but a 0.10 mm mistake changes shifting feel, shock damping, brake rotor runout or wheel bearing life. BONPORA supplie...

High-Performance Shock Absorber Steel Shim Kit — Accurate, Long-Lasting, TunableFor suspension engineers, race tuners, shock rebuild shops and wholesale vehicle component buyers, consistent valve performance starts with premium steel shim stacks. Our shock ab...