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

(46 customer reviews)
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US$24.95

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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.

saltwater reel power knob
Gomexus B45 45mm 47mm aluminum SW reel power knob dimensions weight and bearing accessories
Draining design makes it easy rinsing high precision CNC machining and dual color anodized
Ergonomic design comfortable and powerful grip mounted on heavy duty saltwater spinning reel

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)

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

Customer Images

Image #1 from Daniel Lubinsky
Image #1 from Tristan Koporski
Image #1 from Yaniel
Image #2 from Yaniel
Image #3 from Yaniel
Image #1 from kevin h.
Image #1 from Teddy
Image #1 from Marty Dunn
Image #2 from Marty Dunn
Image #3 from Marty Dunn
Image #1 from Daniel Lubinsky

Daniel Lubinsky

Made my new Stradic 14000SW feel like the Stella. Passed the test in Panana on cubera snapoer up to 45 pounds and a nurse shark and hammerhead both over 200 pounds. The smaller knob also transformed the Stradic 5000 and the replacement handle for Daiwa BG is a huge improvement. Heck, I’m shopping a bunch of reels just to justify ordering more.

Image #1 from Tristan Koporski

Tristan Koporski

Unclear instructions knob came off while fighting a fish.

Image #1 from Yaniel

Yaniel

Better than oem

Image #2 from Yaniel

Yaniel

Better than oem

Image #3 from Yaniel

Yaniel

Better than oem

Image #1 from kevin h.

kevin h.

Package packing's normal . Delivery time normal. Item if fine. Thank you

Image #1 from Teddy

Teddy

It was perfect for the Shimano Saragosa, highly recommended, ultra soft

Image #1 from Marty Dunn

Marty Dunn

Your product is well made and at a great price point. It wasn’t hard to install and works great. If you are not super mechanical review a few videos on YouTube because the instructions could be a little more informative especially on shimming the bearings for permit fit. The finished product was perfect? Now the shipping after it got to the US was not so great but that isn’t the manufacturers doings.

Image #2 from Marty Dunn

Marty Dunn

Your product is well made and at a great price point. It wasn’t hard to install and works great. If you are not super mechanical review a few videos on YouTube because the instructions could be a little more informative especially on shimming the bearings for permit fit. The finished product was perfect? Now the shipping after it got to the US was not so great but that isn’t the manufacturers doings.

Image #3 from Marty Dunn

Marty Dunn

Your product is well made and at a great price point. It wasn’t hard to install and works great. If you are not super mechanical review a few videos on YouTube because the instructions could be a little more informative especially on shimming the bearings for permit fit. The finished product was perfect? Now the shipping after it got to the US was not so great but that isn’t the manufacturers doings.

Image #1 from Daniel Lubinsky
Image #1 from Tristan Koporski
Image #1 from Yaniel
Image #2 from Yaniel
Image #3 from Yaniel
Image #1 from kevin h.
Image #1 from Teddy
Image #1 from Marty Dunn
Image #2 from Marty Dunn
Image #3 from Marty Dunn
4.5 Rating
1-5 of 46 reviews
  1. Made my new Stradic 14000SW feel like the Stella. Passed the test in Panana on cubera snapoer up to 45 pounds and a nurse shark and hammerhead both over 200 pounds. The smaller knob also transformed the Stradic 5000 and the replacement handle for Daiwa BG is a huge improvement. Heck, I’m shopping a bunch of reels just to justify ordering more.

    Image #1 from Daniel Lubinsky
  2. Bonjour,
    Cela peut-il monté avec un Shimano spheros SW A 14000?
    Merci

    • Oui, il peut être installé.

  3. will the size 45mm knob fit my shimano saragosa 6000sw?

    • Yes, it can fit.

  4. Verified reviewVerified review - view originalExternal link

  5. Unclear instructions knob came off while fighting a fish.

    Image #1 from Tristan Koporski
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AreaWarehouseStandard Shipping(free)Express Shipping($20)
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【30 Days Return & Exchange】

Within 30 days of ordering, we can return or exchange the products. Click here for a detailed return/exchange policy.
Note: All orders with engraving services will be shipped from China and not be returnable.

【1 Year Warranty】

We provide a 1-year long-term warranty and forever after-sales service. Click here for details.