TWIN AIR Pre-Filter (Manufacturer reference: 158089DC) — designed for off-road outings where dust and sand put the engine to the test. This pre-filter installs on your intake components to provide an additional barrier against abrasive particles.
- Air-permeable and pre-oiled foam casing: facilitates the retention of fine dust while promoting the airflow necessary for the engine.
- Extended maintenance intervals: thanks to its structure and impregnation, cleaning is needed less frequently than with a dry filter.
- Ideal for off-road and motocross: designed for terrains laden with dust, sand, or loose soil.
This Twin Air pre-filter is aimed at riders who practice enduro/motocross and want additional intake protection without compromising engine breathing. It is often associated with Beta Xtrainer and RX 300 2T models (2026 model year) but fits many motocross machines depending on the installation. To maintain its performance, regularly check the condition of the foam and clean and re-oil it according to the intensity of your rides.
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