B45 | 45/47mm Aluminum SW Reel Power Knob | For Shimano Type-B | Gomexus

The saltwater reel power knob (B45 45mm/47mm Series) from Gomexus is the ultimate high-strength aluminum upgrade designed for offshore popping, vertical jigging, and deep-sea gamefish battles. Precision-machined from aircraft-grade aluminum alloy with dual-color anodizing and weighing just 1.45 oz (45mm) / 1.59 oz (47mm), this rugged round power knob delivers massive cranking leverage and features self-flushing drainage ports to survive punishing saltwater environments. Key Features & Performance Upgrades Unibody CNC Aluminum High-Torque Build: As a dedicated heavy-duty saltwater reel power knob, the solid aircraft aluminum structure provides zero flex or deformation under heavy drag pressures when winching tuna, yellowtail, and amberjack out of the deep. Self-Flushing Drainage Architecture: Specially engineered with perimeter draining holes that allow instant freshwater flush-through, preventing salt crystallization, debris, and abrasive sand from seizing internal bearings. Dual-Color Saltwater Anodized Finish: Multi-stage electro-anodizing delivers extreme resistance against saltwater corrosion, hook scratches, and harsh UV exposure while adding an aggressive look to your offshore setup. Complete 2BB Stainless Bearing Kit: Packaged with 2 marine-grade precision stainless steel ball bearings, 3 spacing adjustment washers, 1 bushing, and a hex wrench for crisp, zero-play cranking out of the box. Direct Fit for Shimano Type-B Shafts: Engineered as a direct screw-on upgrade for heavy-duty Shimano Type-B spinning (5000–20000) and conventional jigging reels without requiring any drilling. Technical Specifications Product Model B45 Series (CNC Aluminum Saltwater Reel Power Knob) Diameter Options 45 mm (1.77 inches) / 47 mm (1.85 inches) Round Profile Net Weight 45mm: 1.45 oz (41.0 g) | 47mm: 1.59 oz (45.0 g) Material & Coating CNC-Machined Aero Aluminum + Dual-Color Saltwater Anodizing Shaft Compatibility Shimano Type-B Direct Screw-In Standard Included Accessories 2x Stainless Steel Bearings, 3x Washers, 1x Bushing, 1x Hex Wrench Compatibility Guide (Heavy-Duty Saltwater Platforms) Reel Family Compatible Direct Fit Models (Shimano Type-B) Shimano SW Spinning • Saragosa SW: 5000–20000 • Stella SW: 6000–20000 • Twin Power SW: 5000–14000 (including 8000FG) • Spheros SW & Socorro SW: 5000–10000 • Thunnus CI4: 6000, 8000, 12000 • Ultegra CI4 / XSE / XTB / XTD: 5500, 14000 Shimano Conventional & Jigging • Ocea Jigger: 1500–3000 • Torium & Trinidad A: 14–30 • Speedmaster 12 / Tekota A Penn & Okuma Platforms • Penn: Clash (5000–8000), Conflict (5000–8000) • Okuma: Azores XP (6000–16000)