ABUS U-Lock Granit XPlus 540, Bike Lock with XPlus Cylinder, High Protection Against Theft, ABUS Security Level 15, Black/Grey

Nice and wide enough to lock the frame and the rear tire. Very happy with the purchase.

Bike mount is NOT included in price!! Costs an extra ~25usd.

Far heavier than expected. Wont fit ladies Trek hybrid when trying to lock bike to small diameter bike rack.

Yeah, engineers in most countries would say the Abus is overbuilt... and maybe too heavy. True, quality, long life and functionality under adverse conditions has a price. For instance, read the review on the other leading company (the one whose name reminds you of the rock that weakens Superman) and youll find sometimes the lock wont open when it gets wet - BUMMER! Even my secondary U Lock (SIGTUNA) has a slide cover to prevent it from allowing water and debris to enter, while the design of the Abus apparently doesnt need it for years of use by others. And the Abus length is perfect - its 11.6 inches, compared to 8.3 inches on the SIGTUNA so often you have to settle for a less secure method to use the provided cable which can be cut with a bolt cutter. Then again, even if you only get a 2 foot ABUS chain it add almost another 4 pounds, so first ask yourself if you really need to carry 8 pounds of security versus 3.6 pounds for the SIGTUNA and half the price.

I think its better than the Kryptonite Brand, its very sturdy and stiff, with easy unlocking/locking using the key. No problems after over a month of use.

Someone tried to use a lifting jack to take my bike! But, this locked still held strong! Thanks to this lock, I still have my bike!

Quality lock, but it is pretty heavy. Im using this as my commuter lock, and putting it in my backpack adds quite a bit of weight. However, good security comes at a price.

Industry standard. Slightly better security than the other brand but not that much better for the higher price. I think they need to contact NASA to develop a material to resist diamond saws and high-leverage cutters. GPS locators and alarms probably would be better.

This Abus Granit XPlus 540 lock was purchased for my using two U-locks together in high theft areas of town. The other U-lock is a 7 Kryptonite Evolution. This way, if a thief learns to pick one brand of U-lock by watching the youTube vids on lock picking hell be deterred by a lock from a different mfg. Since both locks are double-locking, 4 cuts must be made with bolt cutters on the two locks as opposed to 2 cuts on a single lock shackle (or just 1 cut if youre using a Kryptonite bent foot U-lock). Otherwise I use just the Abus in better areas of town. And using two locks will persuade a thief to move elsewhere instead of trying to pick open your lock with whatever metal implement he uses, damaging the locks internal mechanism. He may be unsuccessful at opening the lock but when you try to unlock it you may not be able to. The black & dark gray Abus looks great mounted in the bracket, better than a bright orange or yellow U-lock would look. Even the shackle is a 2-tone gray and black which enhances the appearance. And its the only lock with a 13mm shackle given a three star security rating by ART. Weight is 3.27 pounds - light for a 9, 13mm shackle lock. Made in Germany. The Abus comes with one of two different mounts for frames having round tubes: the EaZy KF bracket (for 28-36mm diameter tubes) or the oversized USH 540 bracket (for 15-35mm tubes). Mine came with the EaZy KF bracket which is simple to install and use. One thing not mentioned in the instructions is that by removing the plastic clamp from the shackle, rotating it 90 degrees, and re-installing it onto the shackle, the lock can be positioned in the EaZy KF bracket so its exactly in the middle of bikes frame [pic] where it wont bump a leg. The mounting bracket for my Kryptonite Evolution U-lock seems less sturdy and is somewhat difficult to install onto bike frame to the point where I never used it, instead carrying the Kryptonite in a backpack. If you want the EaZy KF mounting bracket as opposed to the USH 540 bracket, look closely in the upper left corner of the cardboard wrapper the lock comes in for a small picture of a hand inserting a U-lock into the bracket with the word click in the picture. This lock will come with the EaZy KF bracket. And dont tighten the bracket too much if your frame is alum or carbon. I give the Abus 4 stars not 5 because its expensive and the seam that runs circumferentially between the 2 gray plastic covers on the metal crossbar may tempt a thief to pry apart the plastic, thinking this might help break open the lock. It wont open the lock but with the plastic covering damaged or gone the exposed metal crossbar will be prone to rust and the lock will have a damaged appearance. By comparison, the plastic covering on a Kryptonite crossbar is a seamless skin that wont give anyone the idea to remove it. But locks should be seen as only deterrents to theft and not actual protection against it since a battery-operated angle grinder will cut through any lock shackle (although this will make a lot of noise). The best way to protect an expensive bike is to have a second $200-$300 bike for riding & locking around town and only ride the good bike when it will not be parked out of sight. Btw, in the online Cyclist review of bike locks an angle grinder cut open the Abus Granit XPlus 540s 13mm shackle in 2 minutes & 51 seconds - thats 17 seconds LONGER than it took the reviewers to cut open the thicker 16mm shackle of the Kryptonite New York (2 min & 34 seconds). This shows the hardness of the Granit 540 steel.

I used Krytonite locks in the past, but after using this lock, I dont think Ill ever go back. Its strong but light enough to carry in a messenger bag without issue. Locking/unlocking is super smooth unlike my Kryptonite locks that would leave my fingers in pain. Cant praise this lock enough.