If you look at the pics on the link that locolobo posted. The way it attaches to the bike, its set up as if in a vise. And someone posted in the comments that he hacked it in 20 seconds. My question about the angle grinder test is, did he include, in the time, his little break? You can't tell how fast it really was on any of the test because they sped the recording up. To me, its not worth the $200.