The original progressive rate fork springs soak up the small road bumps, yet are firm enough to absorb the molar-rattling ones. Spring rates have been chosen to reduce front end inch dive inch during braking, yet still provide excellent ride comfort. Better yet, we **our fork springs for life. Progressive rate fork springs have several advantages over straight rate springs. A progressive rate spring has the advantage of a rising rate resistance to compression. The benefit of this is that the spring can be soft enough at the start of the travel to offer a inch plush inch ride, yet be firm enough at the end of the travel to soak up the big bumps.