Yaniv A.
Best service I have ever had in my life...
Best service I have ever had in my life, No questions asked, just sent a replacement lock, this thing is like $70

Poor
Based on 314 reviews
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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 Folks Told, with an average rating of 2.6 out of 5.
314 approved reviews, newest moderated first
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!
Suz
I just received the mini u lock w/key safe. THERE IS NO INSTRUCTION OR VIDEO ANYWHERE, NOT EVEN ON YOUTUBE. There's no discernable place to open it; there's no way to find where the keyhole goes if you cannot even open it. THIS IS STUPID. It's the 21st century and Kryptonite can't get a how-to video for each of their locks? THEY SURE HAVE ENOUGH MONEY!@
Reply from KRYPTONITEFeb 16, 2026
We have requested additional information so that we can assist you further.
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.
Glenn S.
Not just one kryptonite lock issue I have had but two Both became troublesome with the key and lock mechanism not working all the time despite oiling it. Will try alternative locks in future.
Janos P.
Worth nothing. Had kryptonite lock on my bike only took 2 minutes for a guy to cut it off with a wireless saw. The lock was rated 7 or 8/10.
Paul H.
For a company whose brand needs to be based on reliability and security, it has been a disappointment. The locks work fine, but their customer service and operations do not. Our locks came without the rewired tag ## to register the locks and bikes, we never received a promised email confirming we had registered our bikes. and simply trying to replace one of the registered bikes with a new one is now up to three unreturned phone calls and three totally illogical emails where someone clearly cannot pay attention to what is being asked.
Reply from KRYPTONITEDec 17, 2025
I'm sorry to hear about your experience and frustrations. I have requested additional information from you so that a member of our team can reach out and help to resolve your issues.
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.