TBW w/ insert option has a 1in O

not regular dropcenter

Each motor screw set contains all hardware like stock motor nuts

78-80 Z 400 B 400cc

Made in the Netherlands 1

arlen ness stage 1 big sucker air cleaner round wedge for harley 7OM TBW w/ insert option hasOne piece aluminum backing plate No cover included For use with the OEM round or wedge air cleaner cover Stage 1 red pre oiled filter element. With added urethane for best support of the factory cover. The best and simplest performance air cleaner kit for your bike period. Increases Horsepower & Torque Patented Hidden Breather Technology Pre Oiled & Synthetic High Performance Filters One Piece Aluminum Backing Plate Radius Air Inlet for Unobstructed