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

Very well-made. Locks on both sides to give added security. Very durable easy to transport.

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.

It broke when I dropped it on the ground.

Good lock, saved me a long trip to the bike shop to buy.

Just what I wanted,

This provides the same or better serious battle toughness as the other beast locks, but in a lighter package. Superb German manufacturing quality. Worth every cent.

Excellent lock very sturdy and easy to use. I love the light so you can see the key hole. I would recommend this product.

IMO the right combination of size and weight, but you’ll have to be against the bike rack to lock the frame to the rack. Barely fits inside my bike trunk, but worth it. I would recommend the locking dock attachment if you have space to store it within the frame.

This lock has been great! Several other students have had their bikes messed with but they dont even give mine a second thought. No attempted thefts so far.

Needed a strong and reliable lock to secure my bike around campus. This works. Pros: Thick, hardened steel shackle. Lightweight for its size and strength. Thin layer of rubberized material on the inside of the shackle to protect the paint on your bike. Key retention, so that the key can only be removed when in the locked position; never accidentally leave your bike unlocked! One key has a handy little LED light built in. Also comes with a smaller spare. Included card with personalized code to order new keys. Cons: None, absolutely worth the money.