The Hiplok Ankr has an internal aperture of 45mm × 70mm, which means it can accommodate The following Pragmasis Protector chains: 11mm, 13mm and 16mm. While our 19mm chain will just about fit through the ANKR, the sleeve adds extra bulk and will make it very hard to pass through.

Your chain choice should be coupled with the other security you are using. There's not a lot of point in having a very strong chain if you pair it with a weak anchor. And vice versa; if you have a decent ground or wall anchor but then attach a cheap D-lock to it, the D-lock is likely to be the layer of security that lets you down.

If you own a Hiplok ANKR are are looking for a good chain to pair with it, we suggest our Protector 11mm if you use the anchor internally or our Protector 13m or 16mm if you use the ANKR externally.