The Ohlins FKC 100 series Fork Cartridge Kit introduces Ohlins advanced suspension technology to the front forks of the popular line of Harley Davidson FLH/FLT Touring Baggers. The new high-end front fork cartridge damping system vastly improves performance, comfort and vehicle control for the Harley-Davidson front forks. Built on the race proven Ohlins NIX technology, each fork leg features an 8 mm steel shaft, an aluminum damper tube and 25 mm pistons. To maximize the damping performance available in confines of a fork leg, compression and rebound damping are separated between the legs. Also, we did away with the hassle of external adjusters. Just install - it is easy - and enjoy! Of course, optional spring rates are available for individual rider weights, preferences and use of the bike. Whatever your needs are, you will be surprised by how your bike can be transformed.