The Twin Air Air Filter, manufacturer part number 158029 and vendor part number 158029, is designed for select Beta Evo trials motorcycles. Its dual-layer open-pore foam construction provides dependable protection against airborne dirt, grime, and sand while supporting efficient airflow through the airbox. The filter is engineered as a direct-fit replacement for the listed applications and helps maintain consistent engine performance in demanding riding conditions.
A thick, flat, greaseless sealing ring creates broad contact with the airbox and functions as a breathable gasket for increased air passage. The coarse outer foam captures larger contaminants, while the fine inner foam provides a second filtration stage for smaller particles. Twin Air formulates the adhesive to withstand repeated cleaning, including cleaning with harsh solvents or gasoline, helping extend service life when the filter is properly maintained.
The Twin Air filter is slightly smaller than the stock filter to increase air space and circulation around the filter element. It fits 2009–2014 Beta Evo 80 models and 2010–2013 Beta Evo 250 models. Verify the motorcycle model and year before installation to ensure proper fitment.
Features:
- Dual-layer open-pore foam filters airborne dirt, grime, sand, and fine particles
- Thick, flat, greaseless sealing ring provides maximum airbox contact
- Breathable gasket design supports increased air passage
- Cleaning-resistant adhesive withstands repeated maintenance with harsh solvents or gasoline
- Slightly smaller-than-stock design increases air space and circulation around the filter
- Fits 2010–2013 Beta Evo 250 and 2009–2014 Beta Evo 80 motorcycles
Fitment:
2009 Beta Evo 125
2009 Beta Evo 200
2009 Beta Evo 290
2009 Beta Evo 80
2010 Beta Evo 125
2010 Beta Evo 200
2010 Beta Evo 250
2010 Beta Evo 290
2010 Beta Evo 80
2011 Beta Evo 125
2011 Beta Evo 200
2011 Beta Evo 250
2011 Beta Evo 290
2011 Beta Evo 80
2012 Beta Evo 125
2012 Beta Evo 200
2012 Beta Evo 250
2012 Beta Evo 290
2012 Beta Evo 80
2013 Beta Evo 125
2013 Beta Evo 200
2013 Beta Evo 250
2013 Beta Evo 300
2013 Beta Evo 80
2014 Beta Evo 125
2014 Beta Evo 200
2014 Beta Evo 300
2014 Beta Evo 80
2015 Beta Evo 125
2015 Beta Evo 200
2015 Beta Evo 300
2015 Beta Evo 80
2016 Beta Evo 125
2016 Beta Evo 200
2016 Beta Evo 300
2016 Beta Evo 80
2017 Beta Evo 125
2017 Beta Evo 200
2017 Beta Evo 300
2017 Beta Evo 80
2018 Beta Evo 125
2018 Beta Evo 200
2018 Beta Evo 300
2018 Beta Evo 80
2019 Beta Evo 125
2019 Beta Evo 200
2019 Beta Evo 300
2019 Beta Evo 80
2020 Beta Evo 125
2020 Beta Evo 200
2020 Beta Evo 300
2020 Beta Evo 80
2021 Beta Evo 125
2021 Beta Evo 200
2021 Beta Evo 300
2021 Beta Evo 80
2022 Beta Evo 125
2022 Beta Evo 200
2022 Beta Evo 300
2022 Beta Evo 80