The 21 Twin Power SW 4000XG from Shimano is a high-performance saltwater spinning reel designed for anglers who demand strength, durability, and smooth power in challenging offshore environments. Built to withstand harsh saltwater conditions, the Twin Power SW series combines robust construction with advanced Shimano technology to deliver reliable performance during intense fishing situations.
The reel features Shimano’s Infinity Drive system, which significantly reduces friction on the main shaft and improves winding efficiency under heavy loads. This design allows anglers to maintain powerful retrieves even when fighting strong fish.
Equipped with Heat Sink Drag, the reel effectively dissipates heat generated during long fights. By releasing heat away from the spool and drag system, this technology helps maintain stable drag performance and reduces the risk of drag fade during demanding battles.
To enhance protection against saltwater intrusion, the reel uses X-Protect technology, which provides strong sealing around critical areas such as the line roller and stopper bearing. This structure helps protect internal components and improves long-term durability in saltwater environments.
The reel also incorporates HAGANE Gear and HAGANE Body construction, delivering high rigidity and durability while maintaining smooth rotation. Combined with Silent Drive, which minimizes internal play and vibration, the reel offers a refined and stable reeling experience.
With its powerful drag, rigid aluminum body, and advanced drive technologies, the Twin Power SW 4000XG is designed for serious saltwater anglers targeting powerful fish while requiring consistent performance and reliability.
Specifications
Brand: Shimano
Model: 21 Twin Power SW 4000XG
Reel Type: Spinning Reel
Handle Orientation: Ambidextrous
Gear Ratio: 6.2
Maximum Line Retrieve: 101 cm per handle rotation
Practical Drag Force: 7 kg
Maximum Drag Force: 11 kg
Weight: 350 g
Spool Size (Diameter / Stroke): 52 mm / 19 mm
Line Capacity:
Nylon: 3.5-170 m, 4-150 m, 5-125 m
PE: 1-490 m, 1.5-320 m, 2-240 m
Handle Length: 60 mm
Bearings: 9 Ball Bearings / 1 Roller Bearing
Body Material: Aluminum
Rotor Material: Aluminum
Drive Gear Material: Super Duralumin
Key Technologies:
Infinity Drive
Heat Sink Drag
X-Protect
HAGANE Gear
HAGANE Body
Silent Drive