Part number: 11-1132High-quality high-performance replacement fork springs A Progressive Suspension rate spring has the advantage of a rising rate resistance to compression The benefit is the spring can be soft enough at the start of the travel to offer a "plush" ride yet firm enough at the end of the travel to soak up the big bumps Spring rates have been chosen to reduce front-end dive during braking yet still provide excellent ride comfort Made in the U.S.A