Motorcycle Lowering kit Links Link 2003-2006 Kawasaki 636 Turnbuckle style lowering links are infinitely adjustable between stock height and a 4 inch drop. No need to remove bolts and disassemble the rear suspension everytime you raise or lower your bike! Just loosen the nuts and rotate the center portion of each link the same amount. You do not have to remove bolts and find a way to hold the bike up while you are doing it! The body is zinc plated steel or stainless steel, NOT aluminum. The ends have a 1/2" thread and are black oxided steel, NOT aluminum. Aluminum threads DO NOT last and are dangerous! We manufacture, assemble, market and sell these links...thats why we offer them at such a great price!