Though there are even sturdier models, the 13 mm one I got is already very good for my electric bike in combination with my DIB D-Locks. The chain is heavy. The noose version is really worth the money. Thanks for the detailed explanation on the site (text and videos) as well as for the profesional-quality service.
Même s'il existe des modèles encore plus massifs, celui de 13 mm que j'ai acheté est déjà très bien pour mon vélo électrique combiné aux antivols en U (DIB D-locks). Cette chaîne est lourde. La version "noose", avec un anneau plus large à une extrémité, vaut vraiment la dépense supplémentaire. Merci pour les explications détaillées sur le site (texte et vidéos) ainsi que pour le SAV très pro.
[ Pragmasis Comment: Merci beaucoup pour votre deuxieme comment en Francais. Pardonez mois que notre 'website' est seulement en Anglais. Ma Francais est tres mal! Encore encore merci beaucoup :-) ]

I've been using a Pragmasis 22mm Titan Chain and Roundlock partnered with a Sub Major ground anchor for home security for the last year. To improve my out and about touring security, I've opted for a 13mm chain to accompany my Roundlock and my high quality alarmed disk lock. Following a successful year (and many more to come I am sure!) of security at home with my home set-up, I've a high level of confidence in these products keeping my bike safe away from home! Pragmasis comms, timing, service and superb quality of items is exceptional. Thank you.

I bought the 2m with noose end so that it can fit around my brick gate post (rented property, so a ground anchor is not permitted). It works perfectly. Very well made and works with the Roundlock I bought at the same time. Amazing customer service from David who is committed to great customer service.

Big fan of the company, products and service. Having long used their heavy duty 19mm chain and SS65C lock at home, I asked about suitable portable chains (19mm way too beefy to carry round). As usual great advice and service and I got this 13mm chain on advice from David at Pragmasis. As per his suggestion I got 1.5m length with the noose end so it can work over longer distances whilst still being portable. I use it with the excellent round lock which is very tough but highly portable. Nothing will stop a determined well equipped thief but this combo is practical to carry and use and will make them think twice and hopefully look for an easier target instead. It’s a lot cheaper (and less hassle) than having to get a new bike when your pride and joy is stolen…

Ordered a 2m 13mm chain on Monday afternoon and had it arrived on Wednesday morning. Chain is exactly as described and was really well packaged

Guys - just want to say this is an AWESOME product and your customer service has been nothing short of exemplary
HIGHLY RECOMMENDED !!!!!!!!!

I had 10mm chains on my other bikes but recently got something a bit more expensive so decided this would suit my needs along with a torc anchor. The fact that it's only 3mm bigger doesnt do it justice. Knowing this will have a lifetime of daily use makes it a worthwhile investment. 10/10

My 13mm chain arrived next morning via ParcelForce. Promptly fitted to my motorcycle for instant peace of mind. Secured with a RL21 Roundlock. I reckon that will put the casual thief off as soon as they see the security. The 13mm chain - in black- is a good deterrent.

I bought this to complement my existing Kryptonite lock, for times when the lock isn't large enough to attach my bike to lampposts, etc. It's clearly very strong, and I'm confident that it would both deter a thief, and resist any attack. I recommend it.

David was very responsive to an order query, shipment was fast and the chain itself (black colour) seems formidable and good value for the size and quality. As specified it fits a Kryptonite Fahgeddaboutit Mini U-lock to chain up a few moderately expensive bicycles in a locked garage. Hopefully it won't be tested.

After a terrible purchase experience at Almax, I called David at Pragmasis who advised me on the Protector 13mm and 16mm chains which comes highly recommended by reputable motorcycle security product reviews. In addition to the 16mm chain with roundlock I bought the 13mm chain for when I’m out and about. This chain is relatively light for me to carry (I’m female) for frequent use with my motorbike.

This is my second pragmasis chain. The very heavy one (22mm) stays on the lamppost to which I tie my mike every night and this one (13mm) goes in my topcase for when I park the bike in the street.

Fast delivery and well packed

First class service from David fast post arrived on time Recommend this company.

I ordered this chain by itself initially but later realised I'd need a padlock too. Got in contact with Pragmasis via email and David got back to me. He added a SS50CS padlock to my order and honoured the price they would charge for the Package deal!

Chain itself is great quality and the welding is fantastic, it's well protected by durable sleeving and just right as a carry chain for my motorcycle. 5 stars all round!

Superb quality engineering, well worth the money :-)

I have purchased several of Pragmasis' products in the last few years. I have a 19mm chain and ground anchor in my Garage & wanted a slightly lighter chain to use with my Motorhome in conjunction with D Lock. All their products are first class as is the service from David Briggs.I can't recommend them highly enough.

I have an expensive E-Bike which I use for couriering, so I have to constantly be locking it up. I found that a D-Lock isn't ideal, because somewhat often a place I'm delivering to or picking up from doesn't have a bike rack or suitable pole to lock to nearby.
Rather than either the very risky prospect of just immobilising the wheels, or having to waste time searching the nearby area, the 1.2m noose chain I bought opens up a much wider choice of things to lock to that a D lock either can't reach to or fit around.
I'm sure when I go on recreational trips with family and friends, the chain will also be used to secure multiple bikes at once.

The only downside I can see of this chain is the weight. (whilst I don't mind carrying it given I'm on an E-bike, I would were I not, and you have to be mindful when locking up to not bash anything), but, that's simply how physical security works, so I can't really take any points off for that. The longer link design would seem to save weight compared to the shorter links of mainstream competitors as well.

Great chain, feels heavy duty and like it will do the job. Even better customer service that gave good helpful advice and really quick delivery.

Great product for securing bikes at home. Feels very secure Noose loop a really good option for one end

Great service

Well priced, fast delivery and great quality chain. Good customer service too. Highly recommended.

Bought this following Bennetts reviews and the advice of Pragmasis' David, who is clearly very knowledgeable. He just asked "what bike is this for," and immediately knew what would work and what wouldn't. He advised on chain length, and lock and how to secure the bike with them. I am very pleased with the results. I am glad I followed his advice, the chain is big and heavy and a larger one wouldn't have fitted the application. I ended up buying also the RoundLock and the Torc, which are also excellent. I will review them separately.

I have purchased 3 of these 13mm chains over the last few years and they have proven to be very durable, resistant to rust and corrosion (I keep them in situ outdoors year round). The size and weight of the chains act as a very effective deterrent to cycle thieves. Whilst many other bicycles have been stolen in both locations used, my Pragmasis chains have ensured that my bike is not an easy target. Great products at reasonable prices (not cheap - but a bike costs alot more to replace!)

I was pretty sure after reading all the reviews before purchasing this chain I wouldn't be disappointed and I wasn't.
The chain is of excellent quality and service first class. I was kept informed every step of the way by David about my order and it arrived within 3 days.
Can't fault this company, would highly recommend

I asked myself "Which chain should I buy so I can sleep at night?"After reading reviews for chains from different companies on various sites, I knew I had to buy the Pragmasis Protector. I bought the 13mm chain for my very, very expensive Time Trial triathlon bike. The chain is incredibly solid and a very well-manufactured. It is obvious Pragmasis take security very seriously. I firstly read most of the information pages on their website to ensure I was buying the right sized chain for my bike. The information and videos were incredibly helpful. I did several test runs using rope around my frame and wheels to ensure I would choose the right chain length. I highly recommend this to everyone. To all the team at Pragmasis, a HUGE thank you. Amazing products can only come from amazing people. Peter :)

Ordered the 13mm chain with noose end to take a decent chain that I could transport around with me and upon receiving the chain I am well pleased with the product and service I received.

I ordered a 16mm chain which proved to be way too big. After my wife chatted with David we've exchanged for a smaller chain on his advice. Nice to deal with a person rather than just be a number.

Extremely fast delivery and a very good chain, Perfect!

I purchased this lock together with an Abloy PL350 to function as a very solid secondary bicycle lock for my bike, which is kept in a Cyclehoop bike hangar in inner London. My primary lock is a Kryptonite NY M18 DLock, around the seat tube, rear wheel and crank and the protector chain complements this perfectly around the front wheel and down tube, so both locks can fit to a secure object. I think a d-lock and chain work well as a set up to mix up the two lock styles.

I do not think of this as a ‘portable security’ option, it is still very heavy so is part of a heavy duty ‘home security’ up. In the very rare occasions where I would lock up my bike whilst out and about I would choose to take my Dib series d-lock.

The manufacturing quality on the chain is clearly very high and Pragmasis’ customer service is always excellent. I sense that they take a good deal of pride in their products
[Pragmasis Comment: Yes, we do have a pride in our work. We care, a lot. We want to make good quality products in an environmentally and ethically sound way. It's the only way to behave if you want to build a sustainable business, in our opinion.]

Thanks to David, Steve and all there for helping me when I changed my mind with my order once I went to collect it.
Such helpful guidance in person and on the website means my bike is now firmly anchored to the floor with keyed alike padlocks for convenience.
Perfect all round - just wish all purchases could be this easy!