Promoto Lift Kit 25 mm Spark Particle Hd Transparent, Green Light Effect Spark Particles. After good fork oil comes the perfect fork oil! The next evolution of our ZERO friction fork oils has arrived. In cooperation with a leading laboratory, weve once again raised the standard of quality. Racing forks, which experience extreme loads and high sliding pressures during hard braking, now maintain smooth motion with no stiction or stalling. Developed specifically for racing applications, our new GP5 front fork oil with SAE 5 viscosity delivers ideal response and damping behavior. If your forks adjustment range cannot achieve the desired damping characteristics, a shim stack modification may be required a service we are happy to offer.