Nadezhda
Oleh was very helpful and understanding…
Oleh was very helpful and understanding of my situation. He made sure my replacement keys were made and shipped promptly, saving me from having to cut my bike lock. I really appreciated his help.

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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Nadezhda
Oleh was very helpful and understanding of my situation. He made sure my replacement keys were made and shipped promptly, saving me from having to cut my bike lock. I really appreciated his help.
Michael C.
They replaced a lock that had no longer worked. The overall warranty process was straightforward and they honored their lifetime warranty for this type of defect.
Marc B.
Incredible customer service - my lock was cut and they offered a replacement immediately, expedited.
Riccardo C.
I received today a new lock in substotution of a detective One. It's perfect.
LINDA F.
When I had an issue with my lock, I completed an online form and received a quick response. They’re sending me a replacement, honouring their lifetime warranty. No quibbles. I’m really impressed.
Mehmt
After three years of exposure to Scandinavian weather, the lock stopped working. However, Kryptonite shipped a replacement under their lifetime warranty! I can’t believe it happened since I thought lifetime warranties were just a marketing gimmick. I highly recommend them and hope they continue to provide good products and customer service.
Luis A.
The customer service is really good. Very responsive a caring.
Mrs B C.
A tale of two halves. I bought the forgetaboutit chain a couple of years ago and it was cut by an angle grinder a few weeks ago and my bike was stolen. Obvs that’s not ideal, but I knew it wasn’t angle grinder proof. However, Kryptonite have been AMAZING. I emailed them to tell them about it and they shipped me a new lock, free of charge. I really can’t fault the customer service and getting a replacement lock for something so expensive is brilliant customer service.