It doesn't get much tougher than Kyroptonite's New York series. The New York STD U-Lock is bolt cutter and pry bar resistant so you can rest assured your bike will be there when you get back.
- 5/8-inch Hardened KryptoniumTM Steel and center keyway location stands up to leverage attacks and resists bolt cutters
- Updated Pik-safeTM disc-style cylinder- virtually impossible to pick and can't be opened with a pen
- Steel sleeve over crossbar offers additional security protection
- Double deadbolt locking mechanism
- Integrated sliding dustcover protects cylinder from the elements
- Vinyl coated for extra weather resistnace
- Includes versatile new Transit Flex frame bracket
- $3000 (USD) Anti-Theft Protection (in the USA and Canada)
- Free Lifetime Key Registration and Key Safe Program
- Inside dim. 4 x 8 in (10.2 x 20.3 cm)
- 3.9 lbs (1.77 kg)
- Limited Lifetime Warranty
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Weight: 1770 grams
Mfg PartNum: 002154
Purchased this for my wife's Specialized Como e-bike because it offers far better protection than the Kryptonite cable lock she was using. A surprisingly large lock makes it easy to properly secure to immovable objects. Lock mechanism is incredibly solid when engaged. Mounting to some frames may be an issue due to weight/size as was the case for my wife's small framed bike so I ended up carrying it in a small knapsack. I feel the sturdiness / ruggedness of this lock definitely would encourage bike thieves to find an easier target.
I live and commute in areas where crime can be very high, and bike racks are hard to find. This lock is very spacious inside the U shape, with a little over 4" width and slightly over 8" length, which means I can lock the frame to many things not intended for bike locking such as street sign posts. If there is a bike rack, it is often possible to grab the frame, the rear wheel and the rack (far from the ground so leverage attacks will be harder to do). I combine this with a 4' cable to grab the front wheel, also.
Though every bike lock can be cut through eventually, the thickness of the steel and the fact that it would have to be cut twice in an unstable position and an exposed environment makes this pretty tough to beat compared to other bike locks.
I have been very happy with this, but it is very heavy-- even mounted to the frame and hanging down-- you will still feel the extra weight on most bikes. On the other hand, the only other lock that enables me to feel confident about leaving my bike outside in the city weighs 3x more. It also costs a lot, but the heavier locks are even more....
This lock is pretty hefty, however after having a cable lock cut on my beloved road bike I decided to invest. This lock it only for securing the bike in my bike garage, because I do not commute with my road bike. It is very heavy but I have peace of mind when I leave my bike in the garage at night now or if I need to run into a store. I also use the kryptonite cable to lock the front wheel through the main u-lock.
Look, $ is a lot for a bike lock. I've bought entire bikes for less. But $ buys you quite a nice setup, the mount is secure and doesn't slip around despite the heft of the lock, the lock is very strong, and the key opens the lock smoothly and easily.
This is a big, heavy lock, and you can feel the weight when you go up hills. It is also so big that when I carry it mounted beneath the top tube, I can't add any water bottles. However, I didn't buy the smaller version of the lock because I often find myself needing to lock my bicycle in an area where there's no bike parking, so I need room to get the lock around stationary objects not necessarily intended for locking.
So far I'm satisfied. No one seems temped to try to loose my bike after dark anymore. My biggest compliant is how massive the thing is as compared to how medium duty the bike attachment is. If you ride hard, the lock goes all over the place and after only two months of riding, the mount has come loose enough where I had to take the thing off and re-secure it. Comes with three keys which is nice if you're a loser or a misplacer as I am. The insurance policy seems substantial enough but I don't want to test it.
In short, if you really need security, this is THE lock. If you need compact or lightweight, this thing is a heavyweight.