The original progressive rate fork springs soak up the small road bumps for a plush ride, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front-end dive during braking, yet still provide excellent ride comfort. Progressive Rate Fork Springs have a rising rate of resistance to compression to give you a more comfortable ride than straight rate springs.
Progressive Suspension Fork Springs for Street
-Bonneville SE 2009-2015
-Bonneville T100 2002-2016