Motorcycle Engine Part Piston Rings Kit Size 78mm For CRF250R CRF250X CRF 250 R X CRF250 13101-KRN-670 13011-KRN-A10 Material Type: Nodular Cast Iron Size: 78mm : China OEM Code: Not Applicable Package Contents: As Shown in the Picture This piston rings kit is designed for use with select motorcycle models, including CRF250R, CRF250X, and CRF250.It features a 78mm diameter for proper fitment and is constructed from nodular cast iron for under operating conditions.The design allows for direct replacement of components, supporting engine performance in off-road and motocross applications. Compatible with CRF250R (2004–2007), CRF250X (2004–2009, 2012–2013), and 2020 CRF250L models, the kit includes all parts shown in the reference images.Installation is straightforward, providing a practical solution for engine maintenance or. This is a non- replacement.Any reference to brand names or models is strictly for compatibility purposes.