Elana
Amazing warranty
Amazing warranty. So fast and easy

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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Elana
Amazing warranty. So fast and easy
Will T.
Great product - industry leading for a reason. I wouldn't trust my bike to any other lock. Fantastic customer support.
Ben
Great customer service regarding warranty claims
Maryam Ghaderi N.
I purchased a Kryptonite D‑Lock a few years ago—it wasn’t cheap, but it was worth every penny. Recently, my original lock stopped working, and Kryptonite replaced it with a brand‑new one under their lifetime guarantee, no hassle at all. The lock itself is excellent: sturdy, reliable, and gives real peace of mind when securing a bike. But what impressed me most was the customer service. Their team was responsive, helpful, and made the replacement process effortless. I’m extremely happy with my purchase and the support I received. I strongly recommend Kryptonite—not only for a top‑quality bike lock, but also for customer service that truly stands behind its products.
Patricia B.
Thank you for immediatly replacing my lock that, after 3 years of use, had started to disfunction. Fantastic service. Best, Patricia
Lindsay
OLEH was fantastic. Got straight back to me - service with a big smile. 10 out of 10. WELL DONE GREAT JOB
Dave H.
I have bought Kryptonite locks for a long time now and recommend them. However, this review is based on my contacting Kryptonite customer support over a failed lock. After sending them a message including the required photos, I was contacted next day by Oleh, Customer Services. After checking I had tried possible solutions, he arranged a replacement. It arrived from the USA to here in the UK in four days, less than a week from me raising the warranty issue. This is absolutely the best 5* customer service I could expect and fully justifies both my own purchases and the recommendations I've made to many other cyclists.
Claire L.
When I wrote to Kryptonite about small problem with my lock, I was hoping they could sell me a replacement part. Not only did they reply quickly and helpfully, but they offered to send me an entirely new lock, free of charge! I did not expect this, and it surpassed all my expectations. I've had bad experiences with other companies who wiggled their way out of warranty coverage. But this was NOT the case with Kryptonite. What a great experience! What a super company. (I would also recommend their instructional videos - which are very clear).