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Kryptonite New-U Evolution Series 4 Standard Heavy Duty Bicycle U Lock Bike Lock (4-Inch x 9-Inch)
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- 14mm hardened MAX-PERFORMANCE STEEL SHACKLE
- 3 STAINLESS STEEL KEYS — including new key design and one LED REPLACEABLE KEY FOB
- Patent-pending HARDENED DOUBLE DEADBOLT design gives additional protection against twist attacks
- NEW SMALLER CROSSBAR DESIGN
- HIGHER SECURITY DISC-STYLE CYLINDER is pick and drill resistant
- Includes FLEXFRAME-U BRACKET providing convenient multi-location u-lock transport
- Protective vinyl coating
- Key Safe Program
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14mm hardened MAX-PERFORMANCE STEEL SHACKLE. 3 STAINLESS STEEL KEYS — including new key design and one LED REPLACEABLE KEY FOB. Patent-pending HARDENED DOUBLE DEADBOLT design gives additional protection against twist attacks. NEW SMALLER CROSSBAR DESIGN. HIGHER SECURITY DISC-STYLE CYLINDER is pick and drill resistant. Includes FLEXFRAME-U BRACKET providing convenient multi-location u-lock transport. Protective vinyl coating. Key Safe Program.
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Registering the keys on Kryptonite's website is easy and free. If you ever lose the keys you can easily have new copies shipped to you.
The anti-theft program is also easy to set up. I purchased three years of protection for $15. If the bike is ever stolen because the locks failed, the entire price of my bicycle will be given to me. The maximum amount of money covered for this particular lock is $2500.
The lock it self is well constructed and well designed. The lock comes with three keys, once of which is lot by an LED. The LED key feels a bit cheap and doesn't always perform very well. The other keys are just fine. The bottom line is that this lock is very difficult to defeat, even with power tools.
What I don't like: It's very heavy (which i'll put up with as this correlates to the security). It is too large to attach to your bike where you typically would attach (where the water bottle is...and you can't have both). I was able to attach to the rear fork on the opposite side of the derailleur. However, the attachment isn't very sturdy. I'm nervous the lock will shift due to the weight.
This is a good lock if you plan on carrying it in a backpack, but if you don't like to carry a backpack then it's not ideal.
It's probably a great lock, but just not practical to attach to your bike. I would go with the slight shorter/smaller version if I were to do it again.
Easy to operate and gives me peace of mind that my bike is safe.
I got an Evolution for normal rides and a New York standard for more risky situations.
I carry a cable lock when I ride, just in case I need to lock it up to go in to a store.. I would have given it 5 stars if the shinny metal bracket affixed to the u-bolt had been removable. I don't use their mounting bracket so it is useless to me and I have small gaps in my full suspension mountain bike frame. The smooth end goes through fine but it would be nicer if that bracket was removable.