David N.
Great warranty service
My lock developed a fault and I had a warranty replacement shipped out to me within 36 hours.

50 years ago, Kryptonite began with a mission. While much has changed in bicycling, and bicycle security, our objective remains the same, we are here to empower you to protect what you value.Through constant innovation, expert guidance, and our never-ending commitment, Kryptonite will continue to pursue our passion and do everything we can to ensure you can go where you want, when you want by offering smart, serious security solutions.
KRYPTONITE (kryptonitelock.com) has 314 customer reviews on Five Star Index, with an average rating of 2.6 out of 5.
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David N.
My lock developed a fault and I had a warranty replacement shipped out to me within 36 hours.
Cameron R.
Had a problem with my old lock and the customer service team was easy to work with and they were on top of it. Thank you Oleh
Olivier W.
Good quality lock. Responsive customer service for the theft insurance.
Osama
Kryptonite support genuinely went above and beyond for me — they reviewed my case, explained the ATPO requirements clearly, provided the bill I needed for registration, and even arranged a replacement chain so I could register properly. Oleh in particular was incredibly helpful: responsive, patient, and very cooperative throughout the whole process, and he made a stressful situation much easier to deal with.
Yaniv A.
Best service I have ever had in my life, No questions asked, just sent a replacement lock, this thing is like $70
Ryan J.
Oleg was perfection!
Sophia Y.
The customer service rep on the phone was so helpful and very nice. His name was Oleh and he made the process of helping me with my lock quick and easy.
ANTONY D.
Great service on replacement keys. Ordered 2 keys at end Oct 2025, keys depatched from USA on 5 Nov 2025 and arrived via post in UK on the 11 Nov 2025. 3 weeks from order placement on line to receiving keys in UK.