Shock resistant tool steel is the answer

MINI filter length is 1

Formulated specifically to clean and safely sanitise the interior fabric on helmets

Made for the 2021 Honda CRF450R/CRF450RX

State-of-the-art multi-density EPS

K&N - High-Flow OEM Air Filter (SU-4002) K-Type-Track Sprockets Shock resistant tool steel isDesigned to provide increased performance Pleated media provides a large filtration area offering long service intervals Multi Layers of woven cotton gauze media offers excellent filtration Fits directly into OEM Airbox with application specific Sealing Bead to ensure a precise fit Fuel Management modifications are not normally required for increased performance Washable & reusable, pre oiled and ready to ride!