Kryptonite

History of the Kryptonite Brand Kryptonite was born in the early 1970s from the invention of the U-shaped lock created by Stanley Kaplan, who collaborated with Michael Zane to develop its production and marketing in the USA. 1972 – The Legend Begins In an iconic test, a bike was locked for 30 days and 30 nights in Greenwich Village: all removable components were stolen except the frame and the lock itself, which resisted attempted theft. 1974–1977 – Evolution and Guarantees Within a few years, Kryptonite introduced more robust mechanisms such as the K-3 (integrated mechanism) and the K-4 U-Lock (1977), an award-winning design Museum of Modern Art (NY) and recipients of awards in Japan and Germany. At the same time, an anti-theft warranty program with security levels ranging from 1 to 10 was launched. 1994 – The New York U-Lock is born In response to a spike in thefts in New York, Kryptonite launched the famous New York Lock in 1994, which reinstated the anti-theft warranty program with coverage up to $1,000. 2001–2004 – Key Security and Free Key Exchange In 2001, the “Secure Key Program” was introduced: the first two duplicate keys are provided free of charge. In 2004, it was discovered that the tubular cylinder could be compromised by common objects, so the brand replaced over 400,000 locks free of charge in 21 countries. 2013–2017 – Innovations and Collections In 2013, Kryptonite became part of Allegion PLC. Between 2014 and 2017, the Messenger collection (developed with urban cycle redirectors) and the Street Light collection (USB rechargeable bike lights) were launched. Best Kryptonite Bike Locks Kryptonite is one of the most well-known brands for bicycle security thanks to its long history, robustness, and warranty programs. Here are the most recommended models in 2025: Kryptonite New-U New York Fahgettaboudit Mini: Considered the best U-lock according to independent tests. Kryptonite New York Fahgettaboudit Chain 1415 and New York Disc Lock: Among the best chain locks. Kryptonite's internal rating system (levels 1 to 10) classifies these models as suitable even for parking in high-risk areas. Other models, such as the Evolution Mini-7 and Kryptolok Mini-7, achieve a Gold rating under the Sold Secure scheme, making them ideal for urban environments or as lightweight locks to carry with you. Real reliability: pros and cons According to experiences shared online: Some users report excellent customer service: exchanges of defective locks are made easy with a lifetime warranty. Widespread criticism points out that almost all Kryptonite locks are not resistant to the use of angle grinders: they can be cut in just a few minutes. They are recommended as useful deterrents, especially when used in combination or in well-monitored areas. Conclusions Kryptonite was the pioneer of U-locks and continues to be a benchmark brand thanks to technical innovations, anti-theft programs, and international recognition. Among its best current models are the New York Fahgettaboudit Mini and the Chain 1415, ideal for those seeking security and reliability. However, in the presence of professional thieves equipped with heavy equipment (such as grinders), other brands like Litelok or Hiplok offer greater resistance to the base of the bike.