A Shoe & Ride Plate Kit consists of (from L to R) a polished ride plate, a cradle w/ 3 shims & hardware, a custom shoe and the machine work to your intake adapter that creates the mounting area for the kit.
This is what the shoe and ride plate look like when attached to the intake adapter.
The cradle attaches to the split bowl and the ride plat angle is adjusted with a shim stack between the cradle and plate.
Shoes can be made in any configuration. The 3 basic styles are Tapered (a 0.5 deg taper, left), Flat (not shown), and Backcut (a 2 deg backcut, right). The thickness, depth of biting edge, taper, backcut angle, plate pad angle, and length of opening are some of the variables.
Shoe shims are used to adjust the depth of the biting edge when the shoe is installed.