Master Lock’s Python cable lock boasts a neat ratchet mechanism that allows you to adjust the cable length from 30cm to 1.8m, and cuts out excess cable that could be easily snipped. Unfortunately what remains is easily snipped, making the Python hard to recommend.
The adjustable cable system actually works very well: you pull the excess cable through to tighten the lock, and that leaves less exposed cable for thieves to have a go on. However, when you’re measuring the life expectancy of said cable in tenths of a second, it’s pretty academic. Ours took just 12.6 seconds to snip through with the big croppers, which isn’t a good score by any means.
That’s not to say the Python doesn’t have its uses. It’d be handy as a secondary lock to hold wheels and helmet, for example, where the ratchet system would be useful to keep everything tidy. It’s also be a good option for locking your bikes to a bike rack, as you could tighten it down to stop them moving about. Just don’t rely on it as your first line of defence in town: it’s just not up to the job.
Verdict
Clever cable lock with its uses, but keeping an expensive bike safe isn’t one of them
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road.cc test report
Make and model: Master Lock Python Cable lock
Size tested: n/a
Tell us what the product is for, and who it’s aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?
Cut resistant – 10mm diameter 100% steel braided cable
Ultimate Flexibility – Cable length adjusts from 30cm to 1.8m
Patented pick resistant reliable pin tumbler locking mechanism
Tie Down convenience – "Cinch" hold feature prevents slack when cinching cable tight
Non scratch with its vinyl-coated cable
Weather Tough – Rust resistant lock body and cable
Compact Storage – Velcro strap holds excess cable
Lifetime Guarantee
Tell us how the product performed overall when used for its designed purpose
Used as a secondary or low-security lock it’s okay, the adjustable cable length can be useful
Did you enjoy using the product? No
Would you consider buying the product? No
Would you recommend the product to a friend? No
About the tester
Age: 38 Height: 190cm Weight: 98kg
I usually ride: whatever I’m testing… My best bike is: Genesis Equilibrium with SRAM Apex
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






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