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If you read description under the video on Youtube, then where is the problem or what is unclear?;)Who buys a ground anchor with 10mm shackle diameter, as this example on my Yotube video?This is just a simple demonstration, or how to do it video for beginners;)
"This is not a steel ground anchor, this is obviously just a cardbord/plastic model!"
If you carefully reading what someone writes, the you now(or maybe not) what is my recommendation for front wheel locking to bicycle frame.
"U-Lock with shackle dimeter under 16mm=they are completely useless or junk or not worth mentioning", this eyes wide shut philosophy does not need my the same answer again.;)
Dambek-
Might I suggest your comments (and video) might be more welcome in the "How to lock your bike" thread? That is more about general locking techniques.
This thread is designed to list, and discuss, locks which will prevent or significantly hinder a professional bike thief in London. I think @GA2G has tried to explain this to you a number of times.
For sure your videos are insight and helpful to some people, in some places other than London, but not the intended readers of this thread.
chiroshi
The idea is not bad, but the ground anchor would have to be much more substantial that one in the given example. I'd also be worried about the u-lock being bottlejacked close to the ground. Way too much space available for that.
Its a helpful option, but just not fully thought through. I would not recommend it as it is presented.