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The Sport Filter was renamed in 2024 to the Sport/Asthma filter and the Asthma filter has been discontinued
Let the clicking sound guide it to the position you want and close the lever
adjustable from 0
Sport/Asthma Filter: Low to Medium airflow and resistance
more strength
V2 ATR150XL Speed Reducer (pair) salefinal The Sport Filter was renamedThe reducers are engaged with a lever and have one disengaged position and 4 levels of resistance (3 levels for 125) to provide options for adjusting training resistance or braking down hills. Sold individually, usually installed in pairs, but can be installed individually.
