Shimano Aero BB 4000X vs Daiwa 21 Certate SW 10000-PX
The selected categories are different, score metrics vary from category to another.

Shimano Aero BB
Spinning
39.80 out of 100
Value for money2 out of 5
Quality classLow
Durability3 out of 10
Ergonomics6.03 out of 10
Gear ratio4.7:1
Maximum drag10kg / 22.05lbs
Weight290g / 10.23oz
Line retireve per crank75 centimeter / 29.53 inch
Ball bearings3+1
Technical Specifications
- BrandSHIMANO
- The main category of the reelSpinning
- Price range~ €61.33
- Is saltwater resistantNo
- Spare spoolNo
- Reel size4000
- Handle typeSingle handle
- Drag typeFront drag
- Handle orientationLeft, Right
- Line capacity monofilmm/meter: 0.3/180

Daiwa 21 Certate SW
Seafishing
95.00 out of 100
Value for money4.5 out of 5
Quality classExcellent
Durability9.5 out of 10
Ergonomics5.51 out of 10
Gear ratio4.8:1
Maximum drag25kg / 55.12lbs
Weight620g / 21.87oz
Line retireve per crank98 centimeter / 38.58 inch
Ball bearings8
Technical Specifications
- BrandDAIWA
- The main category of the reelSeafishing
- Price range~ €499.33
- Is saltwater resistantYes
- Spare spoolNo
- Reel size10000-P
- Handle typeSingle handle
- Drag typeFront drag
- Handle orientationLeft, Right
- Line capacity monofilmm/meter: 0.33/300
Conclusion
Daiwa 21 Certate SW 10000-PX clearly outshines Shimano Aero BB 4000X, offering significantly better performance in durability (9.5 out of 10) and total score (9.5 out of 10). While Shimano Aero BB 4000X may be a budget-friendly option. For most anglers, Daiwa 21 Certate SW 10000-PX is the kind of reel you can trust when performance matters.
What's the difference between Shimano Aero BB and Daiwa 21 Certate SW?
Daiwa 21 Certate SW 10000-PX
- With a high gear ratio of 9.2 out of 10 (4.8:1), this reel is built for jigging, lure work, or staying tight to fast-moving fish
- Built tough for the salt, ideal for seafishing.
- Exceptional value at €499.33, this reel offers impressive performance for the price, making it a top pick for serious seafishing anglers and pros
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