Shimano Aero BB 4000X vs Shimano 21 TwinPower SW C 5000 XGX
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

Shimano 21 TwinPower SW C
Seafishing
69.50 out of 100
Value for money4 out of 5
Quality classExcellent
Durability9.5 out of 10
Ergonomics5.8 out of 10
Gear ratio6.2:1
Maximum drag13kg / 28.66lbs
Weight420g / 14.82oz
Line retireve per crank105 centimeter / 41.34 inch
Ball bearings11
Technical Specifications
- BrandSHIMANO
- The main category of the reelSeafishing
- Price range~ €435.33
- Is saltwater resistantYes
- Spare spoolNo
- Reel size5000 XG
- Handle typeSingle handle
- Drag typeFront drag
- Handle orientationLeft, Right
- Line capacity monofilmm/meter: 0.37/150
Conclusion
Shimano 21 TwinPower SW C 5000 XGX clearly outshines Shimano Aero BB 4000X, offering significantly better performance in durability (9.5 out of 10) and total score (6.95 out of 10). While Shimano Aero BB 4000X may be a budget-friendly option. For most anglers, Shimano 21 TwinPower SW C 5000 XGX is the kind of reel you can trust when performance matters.
What's the difference between Shimano Aero BB and Shimano 21 TwinPower SW C?
Shimano Aero BB 4000X
- When it comes to retrieve speed, a score of 5.71 out of 10 (75 centimeter / 29.53 inch) means slower line pickup, great when you need more control for slower fishing styles
- The reel scores 7 out of 10 (3+1) in bearings, offering smooth performance for regular use with no issues
Shimano 21 TwinPower SW C 5000 XGX
- Built tough for the salt, ideal for seafishing.
- Solid value at €435.33, reliable and great performance, it’s a smart choice for a variety of seafishing fishing needs
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