Used to properly space and mount radial brake calipers to Kraus caliper mounts. The 12-point high grade black anodized G5 Titanium flanged bolt allows for increased torque; holding power and corrosion resistance while decreasing weight and offering premium performance. 2.5mm aluminum spacers stack to form all commonly needed spacing. For use with aftermarket radial calipers. Note: Each kit will mount one caliper. Note: Designed to run with Kraus caliper mounts. If you''re not running Kraus radial caliper adapters; make sure the thread pitch of your mounts are M10-1.25. Note: When using any OEM calipers it is recommended setting the caliper in place and measuring for proper spacing.