Shimano Aero BB 4000X vs Shimano 21 TwinPower SW C 10000 PGX

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

85.50 out of 100

Value for money4.5 out of 5

Quality classExcellent

Durability9.5 out of 10

Ergonomics5.46 out of 10

Gear ratio4.9:1

Maximum drag25kg / 55.12lbs

Weight655g / 23.1oz

Line retireve per crank102 centimeter / 40.16 inch

Ball bearings11

Technical Specifications

BrandSHIMANO
The main category of the reelSeafishing
Price range~ €429.33
Is saltwater resistantYes
Spare spoolNo
Reel size10000 PG
Handle typeSingle handle
Drag typeFront drag
Handle orientationLeft, Right
Line capacity monofilmm/meter: 0.47/210

Conclusion

Shimano 21 TwinPower SW C 10000 PGX clearly outshines Shimano Aero BB 4000X, offering significantly better performance in durability (9.5 out of 10) and gear ratio (4.9:1). While Shimano Aero BB 4000X may be a budget-friendly option. For most anglers, Shimano 21 TwinPower SW C 10000 PGX 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 10000 PGX

With a high gear ratio of 9.4 out of 10 (4.9:1), 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 €429.33, this reel offers impressive performance for the price, making it a top pick for serious seafishing anglers and pros