Promoto Lowering Kit 20 mm PD Valve A pressure-relief valve prevents hydraulic

A pressure-relief valve prevents hydraulic lock under maximum load

The Wilbers conversion also utilizes linear fork springs

The Wilbers conversion therefore uses progressive fork springs

The OEM shock absorber of the Honda NT 1100 / SC84 also uses a progressive spring with a poor block value

Promoto Lowering Kit 20 mm PD Valve A pressure-relief valve prevents hydraulicIf 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.