Price is for a pair*
These dual caliper brackets allow you to attach a second set of calipers that you can use as a hydro handbrake.
They are designed to form perfectly to the OEM knuckle making it easy to weld on, and have a locating tab at the top of the bracket to make sure they are in the correct position.
Material is 6061 Aluminum.
Recommended method of welding - TIG.
*Clean knuckle surface well before welding
Why would you use these over a bolt on bracket?
Bolt on brackets add 8mm of track width per side and extend the axles which sometimes require axle spacers.