Shimano Thunnus Spin Reel – Premium Baitrunner for Saltwater Anglers

The Shimano Thunnus Spin Reel is the ultimate choice for serious saltwater bait fishing. Featuring the renowned Baitrunner system and lightweight CI4+ construction, the Thunnus combines finesse with uncompromising strength. Available in 4000 through to 12000 sizes, this reel covers everything from estuary and beach fishing to reef and light game applications, giving anglers a reliable option for every saltwater challenge.

Shimano’s HAGANE Gear delivers strength and long-lasting smoothness, while the ARC Spool and One-Piece Bail enhance casting distance and line management. With its lightweight carbon-infused body, the Thunnus reduces fatigue during long sessions, while maintaining rigidity under pressure. S A-RB bearings ensure protection against corrosion in harsh saltwater environments, making this reel a dependable partner when targeting hard-fighting species like snapper, kingfish, mackerel, and tuna.

Designed for anglers who demand the very best from a baitrunner reel, the Thunnus delivers precision engineering, unmatched durability, and superior control when it matters most.

Product Technologies

• Baitrunner System – Allows natural bait presentation before instantly engaging drag when a fish takes the line
• HAGANE Gear – Cold-forged for enduring strength and smooth power transfer
• CI4+ Body & Rotor – Carbon-infused construction for lightweight strength and rigidity
• ARC Spool – Angled lip spool for longer, more accurate casts with reduced line trouble
• One-Piece Bail – Seamless stainless steel bail reduces friction and prevents line snags
• S A-RB Bearings – Shielded anti-rust ball bearings provide corrosion resistance in saltwater conditions

Product Information

Reel Type: Spinning Reel
Series: Shimano Thunnus CI4+
Available Sizes: 4000, 6000, 8000, 12000
Key Features: Baitrunner System, CI4+ Construction, HAGANE Gear, ARC Spool, One-Piece Bail, S A-RB Bearings
Drag Power: High crank power rating – ideal for inshore to offshore species
Warranty: 10 Years
Best Suited For: Estuary, beach, rock, reef, and light/medium offshore bait fishing

Frequently Asked Questions

Q: What fishing styles is the Thunnus best suited for?
The Thunnus is designed for saltwater bait fishing – perfect for live or dead bait presentations where the Baitrunner system shines.

Q: Is the Shimano Thunnus suitable for braid?
Yes, the ARC Spool reduces wind knots and ensures smooth braid casting performance.

Q: How does the Baitrunner system work?
It allows you to fish with a free-spool setting so bait can be taken with minimal resistance. Turning the handle instantly engages the main drag system for a secure hook-up.

Q: Can the Thunnus handle larger offshore species?
Absolutely. With models up to size 12000 and high drag power, it’s capable of stopping hard-fighting fish like tuna, kingfish, and mackerel.

Product Specifications: