Kryptonite

Kryptonite New York Diamond

Ranked #9 in Bike Locks

301 LP on the category ladder what's LP?

This U-lock is praised for its high security rating and robust construction. While heavier, it provides reliable protection that holds up over many years of use, making it a solid pick for high-risk areas.

Consolidated from 11 cited sources across 7 outlets

Where the cited sources landed, as we read them

4 positive sources
4 neutral sources
2 unconvinced sources

See the sources

Flagged as a product to avoid

1 of 2 research runs entered this as a product to avoid rather than a pick.

The Diamond’s premium price is driven largely by marketing; its security is only marginally better than the New York U-Lock, so buyers get little added value for a steep premium.
Flagged 29 July 2026

Why the boards include products to avoid

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Pros & cons

✓ High security rating
✓ Robust construction
✓ Long-term reliability

✗ Premium price with minimal security gain

The sources behind this ranking

We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found.

4 positive sources

Dirty Derailleur Noel · reviewer · Feb 2026

Choose this lock for overnight street parking, transit hubs, busy city centers, or any place thieves strike fast. Riders often pair the Kryptonite New York with a light secondary chain or a wheel cable to layer protection.

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KryptoniteLocks KryptoniteLocks · 9.3K subscribers · Jul 2025

Introducing the all-new New York Diamond Standard, the first angle grinder resistant U-Lock from Kryptonite!

Watch D

DedieMoon DedieMoon · channel

The Kryptonite New York Diamond U-Lock provides maximum security with a 26mm shackle resistant to angle grinders. Comes with a mounting bracket and keys!

Watch 1

10best Picks 10best Picks · 3.6K subscribers · Dec 2025

And honestly, it's a gamecher for anyone serious about protecting their ride. We're talking about a lock engineered to resist even battery powered angle grinder attacks, which let's be real is the ultimate fear for any cyclist, especially with the rise of expensive ebikes and scooters. What makes this possible is a truly impressive 26 diamondcoated double-layered steel shackle.

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4 neutral sources

The Best Bike Lock Article · Jun 2023

In my tests, the Kryptonite New York Diamond was the top performer (by some margin) in every type of attack (shackle, crossbar, diamond disc) except the street-style shack at the bottom of the shackle.

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The Best Bike Lock Article · May 2025

Competitively priced, inconsistent build quality. Unrivaled angle grinder resistance at the top but vulnerable at the bottom of the shackle.

Read T

The Best Bike Lock The Best Bike Lock · channel

It remains an extremely secure lock, just not head and shoulders above the other options, in my opinion.

Watch C

Cyclingnews Article · Oct 2025

Cons Very heavy at just over 2.

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2 unconvinced sources

I Instagram Article

Here at Bennetts #BikeSocial, we won’t review any #motorcycle locks unless we fully destruction test them, so this is what’s left of the Kryptonite New York Diamond.

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The Best Bike Lock Article · Jan 2026

Since I discovered the fault in my first Kryptonite New York Diamond lock , many people have contacted me to ask how they can tell if their lock is defective or not.

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1 stance not read source

The Best Bike Lock Article · Apr 2026

For example, it took me over 20 minutes to cut the Kryptonite New York Diamond when I was holding the lock in one hand and using the angle grinder in the other hand. When the lock was taped down and I could use two hands on the angle grinder, I was able to cut it in 3 minutes!

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