Promoto Lowering Kit 25 mm Watch Masha's Spooky Stories Prime Video. If your motorcycle feels unstable or too tall, the Promoto Lowering Kit helps improve confidence and control by reducing seat height. The model specific components are precision milled from aluminum or corrosion protected steel, and installation can often be done by the owner or a qualified workshop, depending on the type. A* = Linkage Triangle linkage B* = Substitute eye or fork C* = Substitute spring cap Product may vary from picture.