Aluminum Alloy Disc Brake Spacer 2/3/4/5/6mm, 6-Hole MTB Hub Shim Black

This 6-hole aluminum alloy disc brake spacer shim is a practical maintenance spare part for mountain bikes. Multiple thickness options (2mm, 3mm, 4mm, 5mm, 6mm) allow precise adjustment of the gap between brake disc rotor and caliper, solving rubbing, offset and alignment issues perfectly. Made of lightweight aluminum alloy with matte black surface treatment, it brings strong rigidity and great rust resistance for long-term riding.