Search  for anything...

KOHLBURG Highest Security U Lock [Sold Secure Diamond] Bike Lock, 4 Keys | Large 13.5" x 6.7" Heavy Duty Anti Theft Bike U Lock with 67” Steel Cable, 4 Keys & Bracket – Ulock for Ebike Bicycle Scooter

  • Based on 319 reviews
Condition: New
Checking for the best price...
$89.20 Why this price?
Save $5.78 was $94.98

Buy Now, Pay Later


As low as $14.87 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Aug 22
Order within 9 hours and 10 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • CERTIFIED WITH SOLD SECURE DIAMOND The D-lock is designed to protect high-quality bikes - nothing more and nothing less. Hence, this D lock is no lifestyle accessory with a flashy design or exciting gimmicks. We are simply focussing on security by using the strongest available steel and a safe multi-disk cylinder, with the highest security certification from Sold Secure. A secure bike u lock does not need anything else.
  • SOLID STEEL FOR SECURITY LEVEL 15 OUT OF 15 In contrast to many other U locks, we do not use light steel with reduced weight & security. There is simply no short-cut for a secure lock - a bicycle lock needs to be massive & sturdy to prevent theft. Compared with other bike locks, our ulock shackle is heavy duty with a diameter of 0.55 / 14 mm solid hardened alloy steel and, thus, is especially resistant against bolt cutters & metal saws. The price of this high security focus is a lock weight of 3.3 lbs / 1.5 kg, still being ideal s a scooter lock, motorcycle lock, ebike lock and bike lock.
  • SECURE MULTI-DISC CYLINDER Instead of relying on the typical insecure car key cylinder, we equip our lock with a secure multi-disc cylinder. Multi-disc cylinders are extremely difficult for thieves as they need to align several discs at the same time to pick the lock. Additionally, the striking T-structure of the 2-chamber locking system protects the lock against drilling attacks. 3 keys are included.
  • LARGE SHACKLE FOR EASY LOCKING - With an outer size of 6.7" x 13.5" / 17 x 34.3 cm, the lock is comparatively large, making it easier for you to lock your bike to fixed objects. Practically, your bike varnish is protected by the soft protective cover of the shackle. Furthermore, the included 2-way bracket allows to hold the lock from 2 directions (see picture). This enables an easy transport even with small frames. The bracket is suitable for round frames with a diameter of 1-1.5 / 25-38 mm.
  • ADDITIONAL BIKE LOCK CABLE - The handy spiral security cable with a length of 67 / 170 cm and a thickness of 0.3 / 8 mm ensures that you can also connect your front wheel and bicycle accessories such as trailer, child seat & helmet. Practically, heavy duty lock and cable can be used separately. Greatly suited to protect e-bikes, pedelecs, electric bikes, touring bikes, trekking bikes & bike trailers.

Description

The Novosibirsk U-lock combines the high protection of a U-lock with the flexibility of a cable lock - recommended by Sold Secure. Ensure unparalleled security for your bike with our top-tier Hardened Steel U-Lock. Designed to resist the most determined theft attempts, this lock features a shackle crafted from specially hardened steel with a substantial 0.55” / 14 mm diameter. It is engineered to protect against the toughest tools, including bolt cutters and metal saws. Unlike common cheaper imports, our KOHLBURG lock's shackle boasts a premium construction, achieving the highest security rating of Level 15. This exceptional level of security is not only acknowledged but also recommended by Sold Secure for safeguarding high-value bicycles. We understand the importance of maintaining your bike's pristine condition. That's why our steel shackle is encased in a soft cover to prevent any scratches or damage to your bike. Our bike lock comes with a versatile 2-Way Mounting Bracket that can accommodate the lock from two different positions. The practical design allows for slightly offset positioning, making it suitable even for bikes with smaller frames. The installation of the bracket onto the bike frame is quick and straightforward, thanks to the included and clear instruction manual. Please note: The bracket is designed to be mounted only on round frames with diameters ranging from 1” – 1.5” / 25 - 38 mm. Maximize the security of your bicycle with our versatile Spiral Cable, a perfect complement to our robust U-lock. This flexible loop cable, extending to 67” / 1.7 m, is designed to secure not only the bike frame but also both the front and rear wheels, along with any attached bicycle accessories. Thanks to its dual-looped ends, it can be effortlessly integrated with the U-lock for comprehensive protection. Please be aware that while this cable offers increased flexibility and convenience, it inherently provides less protection compared to the U-lock. Sorry, unfortunately, that is not true. And we are honest with you as we want you to correctly estimate the risk for your lovely bike to take the best measures. Of course, other lock producers promise unbreakable protection but this is simply not possible for any bicycle lock - no matter how big (just think of a thief with an angle grinder and enough time to spare). However, what we offer to you is the highest possible security for a lock that can be conveniently carried with your bike. To make a long story short: With its combination of formidable strength and careful design, this bike lock is an indispensable security solution for any serious cyclist.

Brand: KOHLBURG


Special Feature: Cut Resistant, Cylinder with T-structure against lock picking, Security level 15 out of 15


Lock Type: Security U-lock


Item dimensions L x W x H: 13.78 x 6.69 x 1.57 inches


Material: Hardened special steel


Brand Name: KOHLBURG


Recommended Uses For Product: For bicycles, ebikes and motorbikes


Number of Pieces: 1


Included Components: 2-way bracket, 67" spiral cable, High protection multi-disc cylinder, Soft protection cover at the shackle


Model Number: Novosibirsk


Model Name: Security U Lock


Manufacturer Warranty Description: According to legal requirements


Number of Items: 1


Manufacturer: Stahlwart


Unit Count: 1 Count


Manufacturer Part Number: KB-BS-003


Additional Features: Cut Resistant, Cylinder with T-structure against lock picking, Security level 15 out of 15


Lock Type: Security U-lock


Controller Type: Hand Control


Control Method: Touch


Style Name: Security lock, Sold Secure DIAMOND


Color: Black


Shape: U-shaped


Material Type: Hardened special steel


Finish Types: 14 mm hardened special steel


Item Dimensions: 13.78 x 6.69 x 1.57 inches


Item Weight: 1.5 kg


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 22

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very heavy, heavy duty lock
This is a heavy duty bike lock. I plan to ride in the city so it is worth paying a little more to have the security and knowledge my bike will be safe. I got the 5 foot cable so I can use the lock at any type of rack or post. Love this one.
Reviewed in the United States on May 11, 2026 by John Hotz

  • The Arvydas Sabonis of Bike Locks.
After kissing two Kryptonite Keeper locks goodbye, I ordered the KOHLBURG U-Lock. It arrived yesterday, and the difference between it and the Keepers is ’UGE. This thing’s a beast—but with a soft touch. Locking and unlocking is smooth, effortless. The Arvydas Sabonis of bike locks. I can now rest easy knowing my KOHLBURG is locked to the wheel of my 2006 Kymco People 150 intimidating all comers and proudly resisting rain, sleet, and grime. It’s a great lock, folks. ... show more
Reviewed in the United States on July 8, 2025 by RC

  • Took some work
After working with it for a while we finally got the key to turn. I guess it needed a break-in period because now it works perfectly! I feel our e-bikes are very safe.
Reviewed in the United States on March 20, 2025 by Sandra E.

  • Sturdy lock
The lock is very sturdy. Should help to deter thieves although most manufacturers say that none are full proof. You are just trying to make the thieves think twice.
Reviewed in the United States on September 16, 2025 by Michael B.

  • Great lock
Worked great. Easy as any bike lock only a bit heavier. I felt my bike was safe at Burning Man.
Reviewed in the United States on September 12, 2025 by J. Cull

  • Good secure lock
Had to secure my grandsons electric bike. Works great. Good size.
Reviewed in the United States on May 8, 2026 by Diana Thomas

  • Superb product. Must be precise w key to lock or unlock.
PRO -- Showed this to neighbor, a county sheriff. "Amazing lock." "No one will steal your e-trike!" This heavy duty, 90° rght-angle lock, along with my 128db alarm all but guarantee would-be thieves will look for an easier target. CON -- Must be precise with key to un/lock. Otherwise, frustrating, especially in hot Florida sun with impending downpour and lightning. OVERALL -- AN AMAZING PRODUCT. HIGHLY RECOMMENDED. ... show more
Reviewed in the United States on June 2, 2022 by FR Mey

  • Total Fail
Total fail. Thief easily cut the lock and stole the bike while parked inside a parking garage at the movie theater during the day with a security guard. Waste of $100. And lost the e-bike.
Reviewed in the United States on August 1, 2025 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...