Bearings Alecular Bearing Material.  KING developed this alternative to the traditional tri-metal bearings construction. KING bearings have a single deep (.012" - .015") layer of Alecular material, an exclusive alloy of aluminum, tin, copper and other metals, on the steel backing.  This gives us superior embedability.

X = Extra Oil Clearance

.001 .010  .020 are Undersize
(For Cranks that have turned down)