Patented fork seal features a balanced 3 lip design that evenly distributes the pressure reducing operating temperature, wear and friction. Custom Elastomer Fork Seals have been tested to outlast OEM fork seals. Extends typical seal life by 3 to 5 times over OEM seals. Stiction (friction) measures from 1/3 to less than OEM seals for smoother fork action. Lower Stiction, Longer Life! It doesn't get any better than this! Plus, the Only complete line of Dust Wipers! Wipers should be replaced with the fork seals to assure peak performance.Quality design and construction of every All Balls piece meets the toughest standards and conditions - from daily commuting to full-on racing, all older bearing and seal designs are upgraded to the best and latest specs and designs.