Folding Lock Yellow

Compact Security Without the Bulk of a U-Lock – Great for Everyday Stops As someone who bikes regularly (including quick errands and beach runs), I’ve been looking for something more secure than a basic cable lock but less bulky than a traditional heavy U-lock. This SIGTUNA folding lock hits that sweet spot really well. First impression: it feels solid. The hardened 8mm steel bars have real heft to them, and once unfolded, it wraps comfortably around a bike frame and a fixed object like a rack or post. It doesn’t feel flimsy or toy-like at all. At the same time, it’s not excessively heavy. It’s noticeable, but reasonable for the level of protection it offers. What I like most: – Compact when folded. It tucks neatly into the included mounting bracket and sits cleanly on the frame without looking awkward. – No rattling. Once mounted properly, it stays put during rides. – Flexible locking positions. Compared to a rigid U-lock, this gives you more options when locking up to odd-shaped racks or thicker posts. – Protective coating. The anti-scratch plastic coating is a big plus. I’m careful about my bike’s paint, and this doesn’t feel like it’s going to chip or scuff the frame. – Smooth key operation. The locking mechanism on mine works cleanly—no sticking or forcing the key. Installation was straightforward for me, but I can see how some people might get tripped up if the included tool doesn’t match perfectly. If you have a small Allen wrench set at home, that makes things easier. A couple things to keep in mind: – This is not a “leave your bike overnight in a high-theft area” lock. It’s strong for everyday use and clearly better than a thin cable, but determined thieves with power tools are always a different story. – It’s heavier than a minimalist cable lock. If you’re an ultralight road cyclist obsessed with shaving grams, you’ll feel it. For commuters, hybrids, e-bikes, or casual riders, it’s a very fair trade-off. – Make sure you mount it securely and test it before your first ride to avoid bracket movement. For quick stops at a coffee shop, grocery run, or locking up at work in a visible area, I feel confident using this. It provides real deterrence without turning my bike into a weightlifting exercise. Bottom line: A well-designed, compact folding lock that offers meaningful security for everyday riding. Not indestructible (nothing is), but a smart, practical upgrade over basic cable locks. Definitely a 5-star value for the price.

I first saw this lock design during my European travels. Amsterdam, Belgium, Holland all have larger bicycle riding populations which rival anywhere in the U.S. We had a couple bikes stolen from the storage rack at the Florida condo and I decided to try these to keep them safe from the dirty, rotten scoundrels who prowl for other folk's hard-earned stuff. These have a nice bike mount "holster", so they transport comfortable attached to your bike and are rugged anti-theft devices! I've owned them a few years now and they have held up nicely, even in the salt air environment here on Siesta Key. Definitely worth the investment, every penny and I highly recommend this brand.

This is a very clever, lightweight bike lock, and seems like it will be quite secure. The reason I'm giving 4 stars instead of 5 is because the instructions and tools provided for installing the bracket were insufficient. I purchased the "new" model; I suspect that the instructions and the Allen wrench were meant for the previous model, as the Allen wrench was too big for the screws, and the instruction to "place washer on bracket" made no sense. Once I found the correct wrench in my toolbox and figured out how to position the washer, though, installation was easy.

I purchased this lock with very specific use cases in mind. I have a big, study u-lock, which I find heavy and hard to carry. It is also not necessary for everywhere I go - if all I need to do is a quick stop, it doesn't require a monster of a lock. With this new lock I wanted something versatile and convenient, for when I needed to leave the bike unattended in a busy area. Not looking for the highest form of security available, but rather something easy to keep on me at all times, lock and unlock. This Sigtuna folding lock fits the bill exactly. It isn't excessively heavy at < 2lbs, while feeling sturdy. It has this flexibility quality to it, allowing you to lock to virtually anywhere. The length is appropriate - longer than my u-lock, but not too long. The joints are very smooth, it's very easy to unfold and fold this lock. Contrary to some reviews, I didn't find any resistance in inserting or rotating the key - it feels very easy - maybe this has been improved. My favorite aspect of this lock, however, is how compact it folds and sits on the bike. Mine is mounted to the bottle mount and it stays absolutely still, no rattling, no noise. I am interested to know how it will hold over time, but I'm happy there is a warranty.

Ziet er heel stevig en betrouwbaar uit.

Little bit bulky, but what can you expect from interlocked metal plates XD. it's an overall good product, piece of mind my bike won't get stolen with this lock hanging off it, great deterrent.

Buona qualità per il costo effettivo del prodotto, consiglio vivamente.

Very heavy but does the job.

It looks impressive should foil any thieving attempts. It's a little tight on my e-bike with not much room or extra play. But for the price I paid I'm well satisfied.