A technology that supports the elements on which the spool sits. It combines power and lightness to achieve long and accurate casts.

Technology involving the redesign of as many as 11 reel components to achieve the quietest possible operation.

Shimano brand technology based on a specially designed spool, which has a patented shape that allows the line to slip smoothly during casting.

Shimano brand reel design based on cold forged gearing. Such a gear is strong and offers greater resistance to overload than die-cast gears. The overall result is increased durability of the reel.

G-Free Body technology has been developed to move the centre of gravity of the reel closer to the rod. This was achieved by raising the drive shaft by 19mm. This move has directed the centre of gravity towards the angler's hand, resulting in better ergonomics and easier use. The result is less hand fatigue when fishing.

The use of Parallel Body technology in the body design allows the reel axis to be parallel to the rod. This ensures smooth line retrieval from the spool without creating unwanted friction on the first grommet, resulting in the ability to make much longer casts.

CI4+ is an improved version of the original CI4. This material, with its exceptional technological advances, is characterised by a stiffness that exceeds by as much as 2.5 times that of CI4, and can only be found in Shimano's most expensive, extremely lightweight reels. With CI4+, it is possible to achieve significant towing power while maintaining reliability and no risk of deformation of parts.