The Granit X Plus is a long time favourite in our tests. It has a very usable size and a reasonable weight, and a simple but clever bracket is included too.
Under our first test the Abus is simply brilliant, the clever design of the shackle (square profile) means it simply will not twist or turn under leverage. The lock mechanism is protected with hardened steel, which blunts a hand hacksaw and the shackle resists this type of cutting just as well; it sailed through our five minute attack with a bit of cosmetic damage.
Under test two the power tool took about a minute and a quarter to get through one side, but again due to the clever design and of course the double-bolt lock we still couldn't free the bike. This meant we had to cut the other side too, leading to a very impressive time of over two and a half minutes. If you lock your bike with this lock, cleverly keeping one side of the shackle out of the way, this wouldn't be possible. Simply put, this is the best design available, and backed up by Abus's quality control makes the Granit X Plus the best U-lock you can buy.