Standard Bore Piston Rings Kits Fit for CM250C 250 Twinstar 200 185 XL100S XR100 XR100R Condition: Color: As shown in picture Material: Metal Item included: 1 set (5 pieces total) piston rings Compatible With: CM250C 1982-1983 250 1985-1987 Twinstar 200 1980-1982 Twinstar 185 1978-1979 XL100S 1979-1985 XR100 1981-1984 XR100R 1985-2000 Features: - Made to factory specifications - Direct replacement for the part - Simple to install - Includes compression, wiper, and oil rings for piston rebuild - material resists rust and wear for extended use Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.