Quality and innovation as inside the lightweight, compact body of the Cauis are proven technologies like the Variable Brake System which applies centrifugal force and weights instead of magnets to temper intial spool acceleration.   Design allows the spool to spin freely until the end of the cast to reduce backlash.  To eliminate vibration and increase smoothness, a thin-walled aluminum high-toleranceS3D spool offers a baitcasting experence anglers should expect from Shimano.  7.2 gear ratio with 11 lbs. max drag.