Twin Air 150219 Foam Air Filter for Honda CRF250R 10-13/CRF450R 09-12 Each valve position is firmly

Each valve position is firmly held in place unaffected by vibration until the rider makes a change

and redefine what it means to ride in luxury

- TM Racing 450 EN-Fi (2004-2021)

10 steel plates and 3 springs & increases the overall clutch capacity/strength

Twin Air 150219 Foam Air Filter for Honda CRF250R 10-13/CRF450R 09-12 Each valve position is firmlyThis is where it all began. Over 50 years ago, the sandy, gritty soil of The Netherlands and the resulting engine failures proved that single foam and paper filters gave riders air flow, but failed at protection. Twin Airs breakthrough, fused dual layer design (now widely copied) combined performance and protection. The fused layers of open pore foam and fine inner foam trap even the smallest particles. The new, rounder design boosts airflow. So do