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100D DUO – Keyed Alike Heavy Duty U-Locks


The Burg-Wächter 100D DUO is a twin pack of keyed alike heavy duty U locks,  ideal for securing up to 12mm chains and cables. Sharing the same keys on both locks provides the extra convenience both home and on the move. The body of the lock is hardened steel and the 16mm shackle is case hardened steel, both providing tough resistance to attack. The shackle is secured by a double bolted disk mechanism locking both ends and can be completely detached from the body of the lock when unlocked. The lock is weather resistant and suitable for outdoor use, with a keyhole cover protecting the internals.

Sold Secure approved

Independently certified by Sold Secure to Bicycle Diamond and Motorcycle Gold, offering security for your bicycles, motorbikes, garden furniture, shed security and tools.  Perfect for those wanting to protect their expensive investments.


Independently tested

The 100D DUO is independently tested and approved by Sold Secure. Many insurers will request this certification to ensure your bicycle is secure, even when out of sight. Bicycle Diamond offers the highest levels of security against all common attack methods such as hacksaws and bolt croppers. It is also approved for use with motorcycles, meeting Sold Secure Motorcycle Gold.


Police recommended

The 100D Duo was awarded “Secured by Design” – the official Police initiative to support reducing crime through good product design. The “SBD” logo shows the product meets strict standards through independent certification and good product design.


At a glance:

  • Keyed alike twin pack, Black
  • Sold Secure and Secured by Design approved.
  • Double bolted mechanism
  • Case hardened steel shackle and body
  • Protective rotating keyhole cover
  • Strong disc locking mechanism
  • Shackle can be completely detached from the body of the lock when unlocked
  • Weather resistant
  • Large number of key differs
  • Pack contents: 2 x U-locks, 4 x keys
Art.-No. Shackle W x H Shackle Ø
(mm) (mm)
100D Duo 40 x 45 16.0