G-FREE BODY: G Free Body technology has been developed to shift the reel's center of gravity closer to the rod. By moving the center of gravity closer to the anglers hand position, the G Free Body helps to reduce fatigue and enhance casting comfort.HAGANE GEAR: With amazing strength and durability, the HAGANE Gear is at the very heart of the reel. Shimano, through the application of state-of-the-art technologies, gives you the long-lasting smoothness and pleasure that you feel when you first use a reel, over and over again. No cutting work is applied to the teeth of the drive gear. Instead the entire surface is calculated in minute detail by special 3D design and then formed by Shimano's cold forging technology. The result is assured resilience. It's the fruit of Shimano's inexhaustible pursuit for durability; the strength and power of forged metal continues to represent the fundamental concept of Shimano reels.
PROPULSION LINE MANAGEMENT SYSTEM: The most obvious component of the Propulsion Line Management System is the new Propulsion spool lip design. Through tens of thousands of casting tests and computer simulations it has been determined that this new spool lip design provides longer casting distances than a standard spool lip design while preventing backlashes and wind knots from forming.
SILENT DRIVE: intricate parts of the drive train, including the drive gear, wormshaft, wormshaft pin and wormshaft gear, every piece has been carefully reviewed, and the smallest clearance gaps and wobbles have been eliminated to the highest tolerances.
X-SHIP: X-Ship provides improved gear durability. By supporting the pinion gear on both ends with bearings, the pinion gear maintains precise alignment with the drive gear. This means the gears will stay in the same position under the heaviest loads. The added benefit is that friction between the spool shaft and gear are eliminated. This will enhance the casting performance of the reel with lighter lures, and allow for longer casts.
4000XG
