Shimano Aero BB 4000X vs Shimano Sienna 2500X

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 Sienna

Spinning

51.60 out of 100

Value for money4 out of 5

Quality classLow

Durability2.62 out of 10

Ergonomics6.17 out of 10

Gear ratio5.0:1

Maximum drag4kg / 8.82lbs

Weight250g / 8.82oz

Line retireve per crank71 centimeter / 27.95 inch

Ball bearings4

Technical Specifications

BrandSHIMANO
The main category of the reelSpinning
Price range~ €27.33
Is saltwater resistantNo
Spare spoolNo
Reel size2500
Handle typeSingle handle
Drag typeFront drag
Handle orientationLeft, Right
Line capacity monofilmm/meter: 0.25/160

Conclusion

Shimano Sienna 2500X clearly outshines Shimano Aero BB 4000X, offering significantly better performance in gear ratio (5.0:1) and total score (5.16 out of 10). While Shimano Aero BB 4000X may be a budget-friendly option. For most anglers, Shimano Sienna 2500X is the kind of reel you can trust when performance matters.

What's the difference between Shimano Aero BB and Shimano Sienna?

Shimano Sienna 2500X

Thanks to its 6.33 out of 10 (5.0:1) gear ratio, the reel offers a strong balance between torque and quick retrieval
Solid value at €27.33, reliable and great performance, it’s a smart choice for a variety of spinning fishing needs