K&N Replacement Air Filter DUC ST2 / ST3 / ST4 (97-'07) S3-Heading-R&G Spindle Blanking Kits Motobatt’s Cell Balancing Circuit or

Motobatt’s Cell Balancing Circuit or CBC for short

In the Aura Pro Box:

Tread Depth: 18mm

With elements such as the iconic ducktail shape of the Shoei Neo-Classic series as well as a lower air intake with a stylistic design and more

Outer jacket storage:

K&N Replacement Air Filter DUC ST2 / ST3 / ST4 (97-'07) S3-Heading-R&G Spindle Blanking Kits Motobatt’s Cell Balancing Circuit orK&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