O2 RUSH High-Performance Saw-Tooth Foam Air Filter - Fits Honda CRF450R (21-25), CRF450RX (21-25), CRF250R (22-25), CRF250RX (22-25) - Replaces OEM 17213-MKE-AF0 Washable & Race Proven GearWrench With features like 30mm chest

With features like 30mm chest suspension

(2) #8 and #10 Slotted

With a half-height wind fairing designed to accommodate single-row light bars

the MX25F ensures consistent and reliable performance

Protect your Sherco SE 250 or SE 300 (2014-2024) with the Polisport Ignition Cover Protector

O2 RUSH High-Performance Saw-Tooth Foam Air Filter - Fits Honda CRF450R (21-25), CRF450RX (21-25), CRF250R (22-25), CRF250RX (22-25) - Replaces OEM 17213-MKE-AF0 Washable & Race Proven GearWrench With features like 30mm chestMaximize power and protection with the O2 Rush single stage air filter engineered specifically for modern Honda CRF450R RX and CRF250R RX models. The patented CNC profiled Saw Tooth foam doubles filtration surface area, trapping more dust while delivering unrestricted clean air for sharper throttle response and peak horsepower. Ultra soft sealing lips create a 100% airtight fit against the airbox, preventing bypass even in the harshest conditions.