Motorcycle Cylinder Head Gasket compatible with CBR1000RR models from 2006 to 2007 and CB1000R models from 2018 to 2022. This gasket set is designed to fit engines requiring OEM specification 12251-MEL-D21. The set includes all necessary components for cylinder head installation. Color may vary as shown in product images. Intended for use in motorcycle engine repair and maintenance applications where precise sealing between the cylinder head and engine block is required. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.