- 330mm radius

The 4-ply aramid belted carcass provides load stability

16-21 FLTRX/S

Note: Will not fit 84-up flatside tanks

arlen ness stage 1 big sucker air cleaner custom for harley Color:Black - 330mm radiusAluminum backing plate No cover included choose your prefered style of color of the backingplate. Used with a custom round air cleaner cover, minimum ID 6 1 4". Increases Horsepower & Torque Patented Hidden Breather Technology Pre Oiled & Synthetic High Performance Filters One Piece Aluminum Backing Plate Radius Air Inlet for Unobstructed Airflow Note: Choose color of backing plate. For use with custom air cleaner cover, not included.