Progressive 11-1527 Fork Spring

These Progressive Rate Fork Springs are precision wound to give you a better ride on a wide range of motorcycles, including models like the Harley-Davidson Street 500 and 750, as well as various Sportster variants. They're designed to soak up the small road imperfections that can make a ride uncomfortable, but they're also stiff enough to handle the bigger bumps without jarring you. You'll notice an improved feel when braking, as these springs help reduce front-end dive, keeping the bike more stable.

The progressive rate means the spring's stiffness changes as it compresses. This allows for a softer initial feel over small bumps, but then ramps up to provide more support when you need it, like during hard braking or when hitting larger road irregularities. This design offers a notable improvement in both ride comfort and handling performance for many popular motorcycle applications.