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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Tangeseiki LN-3912 Square Tapered Bottom Bracket 73 x 113 mmFeatures Square tapered bottom bracket designed for smooth and reliable crank performance. Forged boron steel solid axle provides excellent strength and durability. Steel cups and body with black EDP coating for improved corrosion resistance. Sealed cartridge bearings reduce friction and protect against dirt and moisture. Precision engineered for efficient power transfer and stable pedaling. Compatible with frames using a 73 mm bottom bracket shell
Features
- Square tapered bottom bracket designed for smooth and reliable crank performance.
- Forged boron steel solid axle provides excellent strength and durability.
- Steel cups and body with black EDP coating for improved corrosion resistance.
- Sealed cartridge bearings reduce friction and protect against dirt and moisture.
- Precision-engineered for efficient power transfer and stable pedaling.
- Compatible with frames using a 73 mm bottom bracket shell width.
- 113 mm axle length helps maintain proper chainline with compatible cranksets.
Specifications
- Model: LN-3912
- Brand: Tangeseiki
- Type: Square Taper Bottom Bracket (JIS)
- Shell Width: 73 mm
- Axle Length: 113 mm
- Axle Material: Boron Steel
- Cups & Body Material: Steel with Black EDP finish
- Bearings: SUJ2 Sealed Cartridge Bearings
- Thread Type: BSA 1.37" × 24T
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 3
Weird fit.
Size: Medium, Color: Flamingo Pink/White
The color and fit is just weird, but it’s so inexpensive that you could argue it’s worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2025
★★★★★ 5
Cute and comfortable sports bra
Size: Large, Color: Slate Grey/White
This is comfortable and soft. It’s very cute to wear as a workout top. The quality seems great. Washes well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
★★★★★ 5
Cute and comfy. Gives good support
Size: Medium, Color: Black/White
Love this. Court cute and comfy. Price is pretty good. Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
★★★★★ 1
Do not buy
Size: Medium, Color: Flamingo Pink/White, Size: Medium, Color: Flamingo Pink/White
Arrived dirty - so gross. Appears to run large but I didn’t try it on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
Comfortable light support.
Size: XX-Large, Color: Navy/White
Comfortable light support. True to size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
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