Twin Air Pre-Oiled Air Filter

• washable and reusable – reusing a Twin Air filter 30 times is common
• dual-layer foam made to Twin Air specifications, with cells that are evenly sized and distributed
• minimized seams made possible by a revolutionary micro-gluing process
• greaseless sealing ring
• assembled by hand and inspected for a perfect fit
• packaged in a resealable and reusable bag
• these Twin Air air filters come pre-oiled and can be used immediately
• Montesa 4RT air filter has a flame-retardant foam layer laminated to the filter to eliminate the restrictive, stock backfire screen

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 Air’s 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 the minimized seams made possible by a revolutionary micro-gluing process: shorter seams = more foam = more flow.