This is an SLF Super Low Friction aluminum big bore shock set for the YD-2.
The cylinder diameter is wider than conventional shocks, and the shock length has been newly designed for drifting.
The largest capacity of any on-road shock has been achieved, enhancing stability.
The cylinders are also treated with Kashima Coat for incredibly smooth operation, absorbing the micro-vibrations that are common with plastic tires and improving traction.