KRYPTONITE50 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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Jim L.
Ordering spare key (uk customer). There is no uk agent cutting keys under licence from Kryptonite. That means the keys are cut and shipped from US. They take 2-3 weeks and cost £32 (2 keys). Plus all that extra C02. When mine arrived they didn’t work and you could see the finish was really bad…not properly de-burred or polished. I’ve complained but heard nothing.
Shayne S.
Had an older kryptolock 2 chain lock with defective locking mechanism. Contacted customer service and they were very responsive and helpful. My replacement arrived with in 2 weeks. Highly recommend them for their high quality products and customer service.
Christian K.
It was a fantastic experience - so smart and friendly in helping me...
Steven
Great customer service. Thank you
Alexis D.
La serrure n’arrête pas de se bloquer. Impossible de l’utiliser une fois sur 2 ! Quelle daube
Saul G.
I used the standard Keeper U-lock for years and was very happy with it. When the locking mechanism broke, they sent me a new lock. Customer service was prompt and polite. I'm very happy withy experience.
K E.
I purchased the Kryptonite Evolution 790 Folding Bike Lock 90cm expecting a premium product and reliable customer support, especially at a $150+ price point. Unfortunately, my experience has been extremely disappointing. The Click-Tight bracket/cradle failed and would no longer release the lock. The lock became stuck in the mount, and I actually damaged the lock trying to get it out. I opened a support ticket with Kryptonite and spent over a month trying to get help. Communication was very slow, often taking weeks for responses. After finally acknowledging the issue, they shipped me the wrong replacement part entirely. When I expressed frustration after more than a month without resolution, I was told I would not receive a replacement lock or refund — only another bracket. To make matters worse, the case was eventually closed without the issue being resolved and I never received the correct replacement bracket. For a company that advertises a lifetime warranty and premium security products, this level of customer service is unacceptable. The lock itself may be secure, but if the mounting system fails, the product becomes unusable. I cannot recommend this product or Kryptonite support based on my experience.
jako
Kryptonite Kryptolok Long Shackle U-Lock was not fit for purpose. I cycle on tracks and rough ground, this causes the levers in the lock mechanism to become loose. This prevents me from fully insterting the key so I cannot opertate the lock. After a few minutes of manipulation I can operate the lock. Did not try for Warranty as it does work if you have time to mess about.
