
SHOWA 50-13 Piston Ring (manufacturer part no. R25005001) — OEM replacement part designed for SHOWA shock absorber pistons. Designed for the maintenance and repair of suspension components, this ring ensures the sealing function between the piston and the oil chamber, essential for preserving the consistency of the settings and the behaviour of the suspension on demanding motocross terrains.
Ideal for riders and mechanics who want to restore the sealing of a Showa shock absorber before a setting or rebuild. Replacing the worn ring prevents oil leaks and piston sticking, and helps maintain consistent travel and behaviour on soft or rocky terrain. Installation requires disassembly of the shock absorber body and simultaneous inspection of seals, rod, and oil. If you are not comfortable with internal operations, entrust the intervention to a specialised workshop.
Compatible with motocross applications where Showa components equip forks and shock absorbers (examples of models using Showa elements: Honda CRF 450 R, Kawasaki KX 250, Suzuki RM-Z 450). Check the manufacturer reference before ordering to confirm compatibility with your machine.