What size chain can a Litelok X1 accomodate?

Will a Pragmasis chain fit a Litelok X1 and X3?

Updated on May 18, 2026

Litelok X1

The Litelok X1 D-lock has a shackle diameter of 21 x 24mm and it will fit the following chains:

Protector 11mm

Protector 13mm

Protector 16mm

Protector 19mm

Protector 22mm

As you can see from the image above, it easily fits into our Protector 13mm security chain.

In the image below, you can see that it does fit our Protector 11mm chain but you have to squeeze the X1's rubber-coated sheath through the 11mm link. It's a tight fit but it works. This combination is popular with customers who want to secure their bicycle and wheels but keep their carry weight to a minimum.

Our larger chains have more internal clearance and so the Litelok X1 will fit every chain in the Pragmasis Protector range from 13mm upwards.

Litelok X3

The Litelok X3 is a larger lock than the X1. It has a shackle diameter of 24 x 27.5mm which will fit into our Protector 13mm, 16mm, 19mm and 22mm chains.

In the picture above, the Litelok X3 is paired with our Protector 13mm chain.

You can see all of our Sold Secure approved high-security chains here.

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James T

Great products

Thanks for some great products. Your kit protected my bikes perfectly during a burglary a few years ago and it’s still going (extremely) strong.

Ben R

Still going strong

I bought from you once and only needed to buy once in 2016, but suffice to say that the 19mm bespoke length chain, and ground anchor installed according to Pragmasis instructions are still going strong, keeping my bike safe just off the street in Brixton, London.

Mr B

Wholly impressed

I would like to say I am wholly impressed with the ground anchors, chains and padlocks that I have purchased over the past few years and will always recommend you when the opportunity arises.

C Rowe

Torc Ground Anchor

Excellent quality piece of kit. Our second anchor to date. Exceptional service. Nice to see a British company up there supplying quality goods and customer service

Steve

Top class service

This is a serious chain! I certainly feel more comfortable that my bikes are well secured. Very pleased with the service too. I phoned then placed an online order and my chain arrived the next day. Excellent product and 1st class service. Thank you!