Motorcycle ZS178MM-2 NX250 Engine Parts Cylinder Kit Cylinder Block Piston Ring Gasket This cylinder kit is designed for use with ZS178MM-2 NX250 engines. The kit includes a cylinder, piston, piston ring, piston pin, and gasket. Individual components are also available separately. Product Name: Cylinder Kit Material: Aluminum Bore Size: 78mm Weight: 950g Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.