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SIGTUNA

Sigtuna Heavy Duty Anti-Theft U Lock - 18mm Shackle, Bicycle & E-Bike Lock with Sturdy Mounting Bracket for Scooter, Motorcycle & Outdoor Equipments

  • Based on 1,598 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Aug 11
Order within 16 hours and 56 minutes
Available payment plans shown during checkout

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Color: Black


Size: Medium - Diameter(18mm)


Features

  • Heavy Duty Anti-Theft: Sigtuna Anti-Theft Bike U Lock is Made of 18mm High-Strength Special Steel.
  • High Security: Lock Cylinder Applied High-Security Cylinder and Double Deadbolt Locking Mechanism.
  • Easy to Use: This Bike Lock Comes with an Install Mount, Protective Coating to Protect Bikes Paint.
  • Widely Used: Sigtuna Bike Lock suit with Bicycles, Electric Bikes, Scotters, Motorcycles, and More.
  • 100% Service Guarantee: Any problem we sincerely hope you can contact us to get the best solution.

Brand: SIGTUNA


Special Feature: Anti-theft, Cut Resistant


Lock Type: u lock


Item dimensions L x W x H: 9.8 x 6.2 x 1.2 inches


Material: High-Strength Special Steel


Brand: ‎SIGTUNA


Special Feature: ‎Anti-theft, Cut Resistant


Lock Type: ‎u lock


Item dimensions L x W x H: ‎9.8 x 6.2 x 1.2 inches


Material: ‎High-Strength Special Steel


Recommended Uses For Product: ‎securing bicycles, e-bikes, scooters, motorcycles, and outdoor equipment


Style: ‎Simple


Color: ‎Black


Number of Pieces: ‎1


Included Components: ‎lock, mounting bracket, keys


Controller Type: ‎Hand Control


Shape: ‎U Shape


Control Method: ‎Touch


UPC: ‎850055349056


Model Name: ‎u lock


Manufacturer: ‎SIGTUNA


Part Number: ‎BL3


Item Weight: ‎2.35 pounds


Product Dimensions: ‎9.8 x 6.2 x 1.2 inches


Item model number: ‎BL3


Size: ‎Medium - Diameter(18mm)


Item Package Quantity: ‎1


Special Features: ‎Anti-theft, Cut Resistant


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 12, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent Lock for bike protection for a great value.
Color: Black Size: Medium - Diameter(18mm)
Great and easy to use bike lock for easy security for your b8ke when riding doing errands. If using for outside your apartment overnight would recommend also with a chain lock just for extra protection and ease of mind for the security of your bike.
Reviewed in the United States on June 27, 2025 by michael
    • I would repurchase if needed
Color: Black Size: Medium - Diameter(18mm)
Nice weight and seems pretty strong. Fits well in the little carrier bag on my small Ebike.
Reviewed in the United States on June 17, 2025 by Lee R. Stowe
    • Seguridad
Color: Orange Size: Medium - Diameter(16mm)
Perfect, very strong and resistant, excellent security
Reviewed in the United States on July 22, 2025 by Henry D Alonso
    • Great Lock
Color: Orange Size: Medium - Diameter(16mm)
Been using it for months and I am very satisfied with this purchase
Reviewed in the United States on May 2, 2025 by Geo
    • No. Problems locking
Color: Orange Size: Medium - Diameter(16mm)
Working. Great
Reviewed in the United States on July 18, 2025 by Clifton Wayne Bankston
    • Seguro
Color: Orange Size: Medium - Diameter(16mm)
Muy seguro de calidad totalmente 👌
Reviewed in the United States on July 20, 2025 by Jonathan arsendo
    • Seems like the primary function of this is to rattle
Color: Orange(Password) Size: Medium - Diameter(18mm)
Can't speak to the safety and longevity of the lock, since I only got it yesterday. The code input seems fine, and the code reveal with the key is a cute feature (though I would've preferred the option to open with a backup key, based on some negative reviews here). But boy does this thing rattle! I put it on my brand-new bike, and now the ride sounds like I'm riding a bicycle that's several years old, and has never been maintained. A real bummer. ... show more
Reviewed in the United States on March 26, 2025 by Lev A.
    • Good
Color: Orange Size: Medium - Diameter(16mm)
Good
Reviewed in the United States on June 30, 2025 by Luis

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