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Kryptonite Modulus Noose lock



£35 will buy you a U-lock that'll easily survive five minutes of torture with barely a scratch, but this unit rolled over in 20 seconds.

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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Kryptonite's Modulus Noose lock is an interesting piece of kit that allows you to lock two bits of you bike at once and fits neatly on the frame. It's a pity it doesn't lock them very well though, and it's only useful for super short term nips to the shops.

The system comprises a rather plasticky locking unit and two cables, which mounts via a quick release to the frame of your bike. You get two 1m spiral loops as standard but there's other lengths available too as options. the braided cable offers 'superior cut resistance' to twisted cables, goes the blurb, and it's marketed as a solution for commuters and students, among others.

So to testing. My first thought was, "I reckon those cables will snip", and 20 seconds later the lock was history with both cables neatly cut. We used our big 30in bolt croppers but you'd get through this with a pair that'd fit in your pocket. It's just not tough enough. The actual lock unit was hardier than I gave it credit for, but that's scant consolation really since there's no requirement to break it.


£35 will buy you a U-lock that'll easily survive five minutes of torture with barely a scratch, and this unit rolled over in 20 seconds. test report

Make and model: Kryptonite Modulus Noose lock

Size tested: n/a

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:
Rate the product for weight, if applicable:
Rate the product for value:

Did you enjoy using the product? No

Would you consider buying the product? No

Would you recommend the product to a friend? No

Overall rating: 2/10

About the tester

Age: 37  Height: 190cm  Weight: 96kg

I usually ride: whatever I'm testing...  My best bike is: Genesis Equilibrium with Ultegra 6700

I've been riding for: 10-20 years  I ride: Every day  I would class myself as: Experienced

I regularly do the following types of riding: time trialling, cyclo cross, commuting, sportives, general fitness riding, fixed/singlespeed, mtb, Mountain Bike Bog Snorkelling, track

Dave is a founding father of, having previously worked on Cycling Plus and What Mountain Bike magazines back in the day. He also writes about e-bikes for our sister publication ebiketips. He's won three mountain bike bog snorkelling World Championships, and races at the back of the third cats.

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DSlater | 13 years ago

One star - ouch, we’re not feeling the love! We agree with you that a cable lock (of any sort) isn’t going to protect your bike from bad guys, but the Modulus wasn’t really intended for riders to use in questionable places. But for the riders most in need of flexibility and convenience during their day, Modulus is a system that allows them to quickly lock and go in virtually any situation - a rack, a railing, multiple bikes, etc. Gone are the days of bulky “homemade systems” that involve a poor rider needing to carry around a heavy length of chain (cut from the DIY mind you) and various padlocks and U-locks so they are prepared for what the day will bring. Modulus, used properly, provides the convenience cyclists have been asking for – a modular system that is quick and easy to use. Again – a cable lock will not work in all areas so be smart about where you secure your ride!

I can tell that you know your way around locks and how to use them, but if your readers are interested to see some of the ways Modulus was intended to be used, we’ve got some pretty decent stuff on our YouTube Channel. Check it out… (

Safe riding…

Daryl Slater

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