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Overview
The Shimano Thunnus CI4 Baitrunner Spin Reel is engineered for serious anglers pursuing powerful saltwater species. Combining the iconic Baitrunner system with advanced CI4+ body construction, this reel delivers exceptional performance for straylining, live baiting, and casting for popular fish like snapper and kingfish. Its lightweight design, coupled with robust gearing, ensures a smooth, durable, and fatigue-reducing fishing experience, making it a reliable choice for both inshore and medium offshore applications. Anglers seeking a dependable "thunnus reel" or "shimano baitrunner" for challenging conditions will find this series an essential addition to their gear.
- CI4+ Construction: The body and rotor are built from Shimano's proprietary Carbon Interfusion 4+ material. This advanced construction is up to 2.5 times stiffer than standard CI4 and significantly lighter than metal, offering exceptional strength and corrosion resistance in a featherweight package, ideal for demanding saltwater environments.
- Baitrunner System: The renowned secondary rear drag system allows for precise, fine-tuned freespool tension. This enables fish to take bait naturally and run with minimal resistance before the main drag is engaged, dramatically increasing hook-up rates for cautious species.
- HAGANE Gear: Utilises Shimano's cold-forged drive gear technology, providing unparalleled smoothness, strength, and durability. This ensures long-lasting performance and power, even under the most intense fishing pressure.
- Propulsion Line Management System: Features a specialised spool lip design that allows line to flow consistently and in smaller loops during casting. This significantly reduces friction, increases casting distance, and prevents wind knots and backlashes, ensuring optimal line lay.
- Paladin Gear Durability Enhancement: Incorporates a cold-forged aluminium drive gear and a hardened brass pinion gear. This advanced gearing system maintains the reel's out-of-the-box smoothness and strength, ensuring extended durability through seasons of heavy saltwater use.
- Waterproof Drag: The primary front drag system is sealed with rubber gaskets, protecting the drag washers from saltwater intrusion. This ensures smooth, consistent drag pressure during powerful runs, maintaining reliable performance in harsh marine conditions.
- Machined Aluminium Handle & Septon Grip: Provides flex-free cranking power and enhanced leverage. The oversized, ergonomic Septon grip offers excellent traction and comfort, even when hands are wet or covered in bait residue.
- S A-RB Bearings: Equipped with Shielded Anti-Rust Bearings, which are corrosion-resistant and feature shields for added protection against salt, sand, and water, ensuring smooth operation and extended lifespan.
| Brand | Shimano |
| Series | Thunnus CI4 |
| Body Material | CI4+ Carbon |
| Bearings | 6+1 S A-RB |
| 4000 Gear Ratio | 4.8:1 |
| 4000 Retrieve Per Crank | 76cm |
| 4000 Max Drag | 7kg |
| 4000 Mono Capacity | 5kg/180m |
| 4000 PowerPro Braid Capacity | 15lb/247yds |
| 4000 Weight | 360gm |
| 6000 Gear Ratio | 4.8:1 |
| 6000 Retrieve Per Crank | 91cm |
| 6000 Max Drag | 9kg |
| 6000 Mono Capacity | 8kg/230m |
| 6000 PowerPro Braid Capacity | 40lb/270yds |
| 6000 Weight | 510gm |
| 8000 Gear Ratio | 4.8:1 |
| 8000 Retrieve Per Crank | 91cm |
| 8000 Max Drag | 10kg |
| 8000 Mono Capacity | 8kg/230m |
| 8000 PowerPro Braid Capacity | 40lb/270yds |
| 8000 Weight | 550gm |
| 12000 Gear Ratio | 4.4:1 |
| 12000 Retrieve Per Crank | 94cm |
| 12000 Max Drag | 12kg |
| 12000 Mono Capacity | 10kg/240m |
| 12000 PowerPro Braid Capacity | 50lb/462yds |
| 12000 Weight | 785gm |
| Intended Use | Straylining, Live-baiting, Surfcasting, Boat Fishing |
Backed by Shimano's comprehensive 10 Year Warranty, the Thunnus CI4 Baitrunner offers long-term assurance for your investment. To maintain its optimal performance and longevity in challenging saltwater conditions, regular rinsing with fresh water after each use is highly recommended.