The Kryptonite New York Lock Diamond Standard U-lock represents the pinnacle of bicycle theft protection. The American manufacturer's first angle grinder-resistant model, it is specially designed to withstand angle grinder attacks thanks to its revolutionary diamond coating. Certified Sold Secure Diamond (the rarest of certifications) and FUB 2 roues (maximum French rating), this lock proved exceptional resistance during FUB's 2025 tests: over 10 minutes and 5 worn-out discs to complete a single cut. A protection level ten times higher than the average for 2 roues locks, ideal for high-end bicycles, e-bikes and high-risk urban areas.

Diamond Coating Technology: the angle grinder revolution

The strength of the New York Diamond Standard lies in its sophisticated multi-layer construction. The 26 mm shackle incorporates a high-performance hardened steel core, covered with a synthetic diamond powder specially formulated to destroy grinder discs. An additional steel layer wraps everything, followed by a protective rubberized TPE coating. This unique structure, the result of Kryptonite engineering, makes the Diamond Standard the most resistant U-lock ever tested by independent organizations. The brand claims that no less than a dozen discs are needed to break through this lock's defenses.

Technical highlights

• 26 mm diamond shackle: Double layer of hardened steel + diamond coating, maximum resistance to angle grinders, bolt cutters and lever attacks
• Patented double deadbolt: The shackle is locked on both sides, forcing the thief to cut twice (over 10 minutes of total resistance) to free the bicycle
• High-security cylinder: Disc-type mechanism resistant to picking, drilling and lever attacks on the central keyway groove
• Sliding dust cover: Protects the cylinder from dirt and debris, extending its lifespan and maintaining mechanism smoothness
• FlexFrame-U bracket: Multi-position frame mounting (seat tube, down tube) for convenient transport without a bag

Certifications and approvals

• Kryptonite rating 10/10: Maximum security level on the brand's internal scale, recommended for long-term parking in very high-risk areas
• Sold Secure Diamond: The rarest and most demanding British certification (bicycle and motorcycle), awarded after intensive power tool testing
• FUB 2 roues: Maximum level French approval. During the FUB 2025 test, the Diamond Standard held for 5 minutes 35 seconds for the first cut, 10 minutes and 5 discs to completely free the bicycle — a record
• 5-year ATPO warranty: Free anti-theft protection for 5 years (bicycles up to 5,000 USD / 4,000 EUR / 3,000 GBP, motorcycles/scooters up to 2,000 USD / 1,750 EUR / 1,250 GBP)

Dimensions and use

The internal dimensions of 204 x 95 mm allow securing front wheel + down tube to a medium-sized post, or rear triangle + fixed point (combined with a cable or chain). Standard format, compatible with urban bikes, road bikes, mountain bikes and e-bikes. The weight of 2.3 kg remains in the upper-middle range for high-end angle grinder-resistant U-locks — a necessary compromise for this level of protection. Supplied with 3 stainless steel keys and the Key Safe program (free replacement in case of loss). Vinyl coating that protects the frame paint and resists weather.

For whom and what uses?

The Kryptonite New York Lock Diamond Standard is intended for demanding urban cyclists, owners of valuable bicycles (carbon road bikes, high-end mountain bikes, premium e-bikes), regularly parking in high-crime areas (city centers, train stations, public parking). Ideal for bike commuters leaving their ride outdoors for several hours, couriers and all those who refuse to compromise on security. Recommended by FUB as one of only two locks on the market offering resistance ten times higher than standards. A justified investment to protect a bicycle worth several thousand euros against professional thieves equipped with power tools.