Piston rings for Honda DIO scooters, size 1.50. The size indicates the piston oversize grade: choose it by the cylinder diameter after reboring. The rings seal the piston in the cylinder, maintaining compression and keeping oil out of the combustion chamber. Manufacturer: SEE. Country of origin: Taiwan.
Consider replacing them if compression drops, acceleration is sluggish, the exhaust is smoky, or oil consumption is high. The ring size must match the size of the piston and cylinder.
