Amazon.com: Customer reviews: Kryptonite Keeper 810 Foldable Bicycle Chain Lock

Top positive review

One of the best locks out there

Reviewed in the United States on December 19, 2020

This is a very strong lock, Its a little on the heavy side but Ido recommend using this lock as an addition to another lock,. Lets face it if a thief wants your bike he will find a way to get it but this lock will make the process much harder. I will say Kryptonite makes very good locks and at reasonable prices.

One person found this helpful

Top critical review

Critical reviews›

Lila

Taking a chance with this lock... which is not the quality one associates with Kryptonite Locks

Reviewed in the United States on June 11, 2023

I have purchased many Kryptonite locks and chains in the past. (It used to be my second favorite brand after Abus). But either the factory has changed hands, or has acquired or launched a cheaper lower quality (and price) line of products, as demonstrated by this lock. '

For starters, the lock casing is already quite concerning. Big and bulky, it seems made of incredibly cheap and brittle plastic, which will not withstand a blow with a hammer or a rock. The chain, albeit heavy, does not look particularly strong, and I think anybody with a pair of thick pliers could cut it in the blink of an eye if they wanted. I'm using a second (also not the best) Master U lock to hold the frame of the bike. So I am basically counting on the person with the pliers being lazy, and going for other bikes, with perhaps equally mediocre quality, but single, locks, because at the moment, I cannot afford a proper Abus lock for my bike.

263 total ratings, 67 with reviews

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From the United States

Omar Martin

One of the best locks out there

Reviewed in the United States on December 19, 2020

Verified Purchase

One person found this helpful

Helpful

Alberto Villarejo

Secure, strong and Heavy

Reviewed in the United States on July 3, 2023

Verified Purchase

Good product, but too heavy for carrier

One person found this helpful

Helpful

FERNANDO Z

Significant Price Drop.!

Reviewed in the United States on August 10, 2023

Verified Purchase

I am the proud owner of 2 Kryptonite Keeper Locks since 2017..! check them out in the picture.
I ride my bike every day recreationally and to work every day. I carry these 2 with me everywhere, and use them every day. Still, the original keys, the plastic on the lock is without a scratch, the fabric is a little faded from Florida's brutal sun, but without a rip. It took me 5 years to write this review because I wanted to see if they were worth $60 each back when I bought them..!
I am sure this is the best investment I ever made for my very expensive BIKES (I also use them on my motorcycles). I am just puzzled why today (8/10/2023) these locks are less than $20 today when I paid $60 at Amazon on 01/2017 & 06/2017 respectively. Regardless, at $20 today it's a steal..!! buy them, you won't regret it. The extra weight in your back pack makes you are a stronger rider, comes in handy when I attack the hills.!!!

Helpful

Blue Sky

It's a lock that says Kryptonite on it

Reviewed in the United States on March 24, 2022

Verified Purchase

I did remove the gray outer sleeve because the lock was difficult to remove and reinstall even after spraying silicone on it to reduce friction. It's a nicely made lock at a good price. It was at the top end of an acceptable weight for my electric scooter. Any lock can be defeated even this one of course. I also added a motion alarm available fro Amazon or EBay for about $22.

One person found this helpful

Helpful

Lila

Taking a chance with this lock... which is not the quality one associates with Kryptonite Locks

Reviewed in the United States on June 11, 2023

Reviewed in the United States on October 13, 2020

Verified Purchase

It's a simple chain lock. It's good for the price ($28). It's not the thickest you can find. It says on the label that it has 5/10 security rating, so it's not the safest either. Key seems to be turning easily without a problem in the lock. I ended up returning it because it's longer than I needed.

One person found this helpful

Helpful

Dijo Mathews

Secure but bulky and heavy

Reviewed in the United States on July 22, 2020

Verified Purchase

I am a fan of Kryptonite locks, they make amazing products. This lock i bough particularly for my commuter bike. I wanted a nice and secure lock set as i park in the city and i often see bike parts being stolen. So instead of the U lock, i got this one so that i can secure my bike better. At the same time i wanted the option of storing it on my bike while i commute. This is the perfect lock in that sense, and the best in quality. Also the cloth covering prevents my bike from being scratched up. The part that i don't like is that it is really heavy and bulky and it is kind of difficult to get the lock back into the holder after folding it up.

2 people found this helpful

Helpful

george

Im Happy

Reviewed in the United States on May 5, 2020

Verified Purchase

this lock is good for the price. it has a metal rod that has a decent thickness to it , more so than a chain. The lock system is nice, i like the feature alot. the length is good enough for any normal lock up. Overall im happy with this unit as of right now.

One person found this helpful

Helpful

Travis Davies

Too heavy and overpriced

Reviewed in the United States on January 16, 2024

Verified Purchase

This thing weighs a brick. It is way too heavy, nice compact design. It’s just it’s way too hard to handle when trying to fit it through your wheel spokes or maybe through the frame it’s just very heavy and bulky in my opinion they could’ve made it look big but use maybe a lighter material. And his way over price for just your basic piece of chain that you can get from Home Depot.

Helpful

radiantsunrunner

Keeps the bike safe

Reviewed in the United States on October 19, 2022

Verified Purchase

It Is a little hard to store on a road bike and the key can be hard to get out

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Kryptonite Keeper 810 Foldable Bicycle Chain Lock

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