Material Type: Nodular Cast Iron Size: STD 76mm OEM Code: 13031-MFL-010 Package Including: Up to 4 sets Fit for: CBR1000RR, CBR1000, CBR 1000 (2008–2016), XV1100 These piston rings are designed to replace worn or damaged piston rings in compatible motorcycle engines.They are manufactured from nodular cast iron and sized to match the specifications for the listed models.The 76mm diameter and STD size correspond to the factory dimensions used in the CBR1000RR, CBR1000, CBR 1000 (2008–2016), and XV1100 applications.The set includes components required for one cylinder; multiple sets may be selected based on service requirements.Certification to ISO9001 indicates adherence to standard quality management processes during manufacturing. This item is a compatible alternative.Use of brand identifiers is limited to showing which models it fits.