PROGRESSIVE SUSPENSION Fork Springs ’48-’17 XL 11-1578

High-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