DRC/ZETA/UNIT Front Lowering Inner Kit for SHOWA AOS ForkFront fork lowering inner kit for SHOWA AOS front fork suspensions. Replace front fork inner parts with this kit. It provides 30 mm and 50 mm lower height. Replacing SWOWA front fork spring seat and fits inner collar to make your suspension 30 mm lower than stock height. Make front fork fully extended length shorter, but no change length when the fork is shortened. Keep clearance between wheel and under fender, even on lowering.