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KOHLBURG U-Lock with Highest Security Sold Secure Diamond Certified - 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 280 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Thursday, Apr 30
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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.

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


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


Model Number: Novosibirsk


Manufacturer: Stahlwart


Unit Count: 1 Count


Manufacturer Warranty Description: According to legal requirements


Item Dimensions: 13.78 x 6.69 x 1.57 inches


Item Weight: 1.5 Kilograms


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: High German security standard


Material Type: Hardened special steel


Finish Types: 14 mm hardened special steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

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.

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Top Amazon Reviews


  • 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.

  • 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

  • Needs a little engineering improvements.
The U-Lock heavy duty as indicated, I only hope the steel is properly hardened to ensure protection as needed. Disappointed in the quality of the lock mechanism itself as the Key is a fight everytime to get it in and out. The Cable included is extremely disappointing, very hard to use considering its stiffness in gards to its coil memory. Not really a useable product. ... show more
Reviewed in the United States on November 10, 2024 by brianl

  • 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

  • Strong lock
Very high security...rated15 out of q5.
Reviewed in the United States on September 19, 2025 by Bruce B

  • 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

  • Long enough to fit around most poles even lock up two bikes if needed
I was satisfied with the product.
Reviewed in the United States on January 4, 2026 by Grady M.

  • Seems a good lock
It seems to be a good lock, but its heavy and the mount seems insufficient. It tends to contact the bike rim. I am waiting for the day it jams my rear tire.
Reviewed in the United States on November 24, 2025 by McGee

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