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Shimano TwinPower SW (2021)

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For the nearshore and offshore angler, the Shimano TwinPower SW brings a new dog to the fight to prevail over true saltwater gamefish such as tuna, striped bass, mahi mahi, grouper and more. 

Over its predecessor, this 2021 TwinPower SW takes in new technologies such as Infinity Drive and Heatsink Drag that are trickled down from the Stella SW Creel.  Infinity Drive optimizes the way load & torque is applied to the reel when fighting a fish and even retrieving a lure or bait.  It essentially is the driving technology of keeping the retrieve feeling light and crisp, giving the angler more focus to on fighting the fish and not the gear.  Heatsink Drag (only seen in 10000 & 14000 models) dissipates the heat given off from the spool itself which is often seen when fighting pelagics.  Heat can cause issues with braided line as well as the drag, which are two key elements in any battle with pelagics to get them in the boat.


  • CI4+ Body
  • Cross Carbon Drag
  • Hagane Body
  • Hagane Gearing 
  • Heatsink Drag (10000 & 14000 models only)
  • Infinity Drive
  • Silent Drive
  • X-Protect 

Hagane Gearing:  A cold foraged gear set for the heart of reel, assisting with gear durability, longevity, strength, and smoothness.

Shimano X-Protect
X-Protect:  Similarly seen in Stella SW C, the new TwinPower SW employs X-Protect for its line roller as well and further improves its waterproofing performance.
The new structure protects bearings inside
the line roller from the harsh saltwater environment and bearing durability is ten times greater than conventional designs.

Micro Module II Gearing:  The most advanced gear technology Shimano has done to date.  Its Shimano's pursuit at the ideal shape of each gear tooth, which ultimately provides for less gear noise and improves smoothness.

Silent Drive: Implemented to eliminate any looseness, gaps, and vibrations between components in the drive section as well as others.  This provides for tighter tolerances, less play, more comfort, and a quieter if not silent reel.

Shimano Silent Drive

Infinity Drive:  A design where the pinion gear inner does not make contact with the main shaft, as a high-sliding bushing supports the main shaft. With this new structure, the sliding resistance of the main shaft is drastically reduced.

In addition to this, a special skidding coating on the main shaft helps to further reduce sliding resistance. InfinityDrive cuts handle rotation torque by about 30 percent in comparison to the conventional system, and makes the reel more powerful.