Another feature geared toward durability is the S A-RB bearings. These bearings are corrosion resistant, and are shielded so that sand and salt cannot get in and hurt their performance. As far as the operation of this reel goes, the Dyna-Balance feature eliminates wobble on the retrieve with a counter balanced rotor. The Fluidrive II feature consists of a polished gear surface that maximizes tooth contact, thereby helping the efficiency of your cast and retrieve. Like most of Shimano's spinning reel lines, the Sahara 500 FD differs from the other Saharas in terms of inches of line retrieve per crank, pounds of maximum drag, line capacity, gear ratio, and weight.
