These dual caliper brackets allow you to attach a second set of calipers that you can use 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. They are made out of 6061 Aluminum, and it is recommended to weld them TIG.
Note: Clean the knuckle surface well before welding.
The weld-on dual caliper bracket is far superior to a bolt-on bracket because bolt-on brackets add 8mm of track width per side and extend the axles which sometimes require axle spacers.
Note: The price is for a pair.