Scooter Pcx 125cc Cylinder Kit For Lead125 WW Pcx125 Click125i 125 52.4mm 12100-KZR-600 4-Stroke Engine Cylinder kit designed for 125cc scooter models including Lead125, WW, Pcx125, and Click125i.Compatible with 4-stroke engines using 12100-KZR-600.Features a 52.4mm cylinder bore diameter.Includes cylinder, piston, piston rings, and associated hardware for engine rebuild or replacement.Constructed to match specifications for proper fit and function.Intended for use in requiring maintenance or performance restoration. This product is a third-party alternative.Brand/model references are included only to assist with compatibility identification.