The Ultimate Anti-Angle Grinder D-Lock!

Introducing the new Squire Stronghold® D16 MAX - Maximum Security Anti-Angle Grinder D-Lock

An ultra-tough bicycle D-Lock which delivers extreme resistance against dedicated angle grinder attacks!

This formidable bike lock is reinforced with additional anti-angle grinder armouring material, proven to defeat multiple angle grinder discs! It features a heavy-duty 16mm boron hardened steel shackle encased in a tough TPE moulding, and a robust 25mm thick hardened steel high-security lock body to deliver cutting-edge defence against bike theft.

The Stronghold® D16 MAX is secured using a precision engineered high-security 6-pin key cylinder, including anti-drill, anti-pick and anti-bump technology with over 500,000 possible key differs. This restricted section key system comes complete with a personal key card to prevent unauthorised copying to provide an additional layer of security.

Independently tested, the Stronghold® D16 MAX easily surpasses the ultimate Sold Secure Powered Cycle Diamond rating, the highest level of security for powered cycles! This rigorous attack test includes multiple heavy-duty tools and techniques including pry bars, bolt croppers and high-powered portable angle grinders.


The Stronghold® D16 MAX. Maximum anti-angle grinder security for all high-end bicycles, e-bikes and e-cargo bikes.