K&N Replacement Air Filter CBR500R / CB500F (19-'20) S3-Cat-SpareParts-Wheelbearingandsealkits These consist of a braking

These consist of a braking rotor in stainless steel

SWH6325:  Tether switch 'normally open'

Maximised comfort: filters allow air-flow into the ear

The best safety and Pro-Fit comfort

The yellow version in particular has a softer material for extra tackiness

K&N Replacement Air Filter CBR500R / CB500F (19-'20) S3-Cat-SpareParts-Wheelbearingandsealkits These consist of a brakingK&N's high flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. Features: Designed to provide increased horsepower and torque. Pleated media provides a large filtration area offering long service intervals. Multiple