Oxford Products make a wide range of ground anchors. If you have an Oxford ground anchor and you want to know what thickness Pragmasis chain they can accomodate, hopefully we've answered your questions below:

Oxford Bruteforce Ground Anchor

The Oxford Bruteforce ground anchor can just about fit the Pragmasis Protector 13mm which is pictured above. It is a tight fit and requires a bit of jiggling to get the chain through. Because the Bruteforce has a plate as part of its design, this would help minimise wear to your chain sleeve as you pull it through.

Oxford Rotaforce Ground Anchor

Oxford state that the Rotaforce can accomodate (their) chains up to 16mm but when we tried our Protector 16mm it would not fit. However the Protector 13mm security chain, pictured above, fits through nicely, with a bit of room to spare.

Oxford Anchorforce Ground Anchor

Oxford state that the Anchorforce accomodates chains up to 16mm but their only other larger option is a 22mm.

We just about managed to get our Protector 19mm security chain through the Oxford Anchorforce, pictured above. The maximum height under the bridge is 48mm. The Anchorforce doesn't have a floor plate and so if you were doing this on a daily basis in the scenario pictured above, you'd probably wear your chain sleeve through pretty quickly. A Protector 16mm fits well, without having to be dragged through.

Oxford Beast Ground Anchor

The Oxford Beast ground anchor is a similar design to the Anchorforce but at 64mm, it has a 16mm more clearance under the bridge than the Anchorforce. The Beast ground anchor can accomodate the Protector 19mm chain, as pictured above.

Oxford Terraforce Ground Anchor

Oxford's Terraforce is a bury-in ground anchor and Oxford state it can fit chains up to 14mm in link diameter. Our Protector 13mm fits and we did try with the Protector 16mm but the link won't make it through.