A precision engineered Speed Bush for the ABU Sports Mag and other dome sided ABU reels (including the left hand wind 6501C3). It replaces the nylon cog on the spool end, sitting over the spigot in your left-hand side plate and locating on the inner race of the spool bearing, thus greatly reducing friction and the windmill effect of the original cog.
A speed bush is an essential part of any CT Conversion. The reduction in friction and removal of the windmill effect caused by the nylon cog will increase spool speed and allow increased casting distances to be achieved.