The lock mechanism seems okay and the lock is good for some bikes but the clamp to attach to the bike did not fit around my mountain bikes large frame. Then when I got it on using hardware from the local hardware store the bar part fell off while I was riding and I didn't notice and lost it. It may have been my fault, I may have not snaped it in to the clamp all the way that time. I have a new lock now that is similar, still didn't fit but it comes with a cable to lock up the tires also, but the lock mechanism is not as good as the M-Wave Digit Shackle .
How accurate was the sizing? okay
Please tell us about the quality of the product. did not fit on my mountain bike properly
Was the product free of any manufacturer defects? yes
I have had the bike lock for only a few weeks, and already it has a crack. I am not sure how long it will last, but the plastic mounting has a slight crack which is not a good sign. Other than that, the lock is simple and works well.
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