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Kryptonite Keeper 755 Mini Bike Chain Lock, 1.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence

4.5 4.5 out of 5 stars 336 ratings

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Purchase options and add-ons

Brand Kryptonite
Special Feature Anti-theft,Heavy Duty,Lightweight
Lock Type Key Lock
Item Dimensions LxWxH 3.15 x 1.18 x 1.18 inches
Material Nylon, Steel

About this item

  • The mini version (55cm) of the popular Keeper 785
  • LIGHTWEIGHT for easy transport - only 2 lbs
  • 7mm four-sided chain links made from 3T MANGANESE STEEL
  • New END LINK DESIGN secures chain with hardened deadbolt
  • Hardened DEADBOLT DESIGN provides extra holding power
  • HIGH SECURITY DISC-STYLE CYLINDER is pick and drill resistant
  • Includes 2 NEW ERGONOMIC "I" KEYS

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From the manufacturer

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  • Rated 5/10 on Kryptonite's security scale
  • Moderate Security lock
  • Eligible for the optional Anti-theft Protection

Keeper 755 Mini Integrated Chain

Moderate Security

  • 7mm four-sided chain links made from Kryptonite’s high performing 3T manganese steel.
  • New end link design secures the chain with the hardened deadbolt.
  • New design secures chain directly to hardened deadbolt; offers no “weak” link in the chain due to the extensive holding power of the link itself against attacks.
  • High security disc-style cylinder is pick and drill resistant.
  • Weather-resistant nylon sleeve prevents scratches to painted finishes; compact coiling for easy carrying.
  • Comes with 2 ergonomic keys.
  • Length: 21.5" (55cm)
  • Weight: 2.06 lbs (0.93 kgs)

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Chain Size

7mm four sided chain links made of 3T manganese steel.

Anti-theft Protection

Register your product online to activate the optional Anti-theft Protection. In the unlikely event the product is defeated when used properly Kryptonite will pay out up to a certain value depending on the security value of the product. Visit our official website for further information. T&C’s apply.

Key Safe Program

Register your keys online and Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.

Stainless Steel Keys

Includes 2 stainless steel keys.

Product Description

The mini version (55cm) of the popular Keeper 785. LIGHTWEIGHT for easy transport - only 2 lbs. 7mm four-sided chain links made from 3T MANGANESE STEEL. New END LINK DESIGN secures chain with hardened deadbolt. Hardened DEADBOLT DESIGN provides extra holding power. HIGH SECURITY DISC-STYLE CYLINDER is pick and drill resistant. Includes 2 NEW ERGONOMIC "I" KEYS. Durable WEATHER-RESISTANT nylon sleeve prevents scratches. Key Safe Program.Product dimensions: 21.5” (55cm) chain length.Product weight: 2.06 lbs (0.93 kgs).

Product information

Technical Details

Additional Information

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Kryptonite Keeper 755 Mini Bike Chain Lock, 1.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
336 global ratings

Customers say

Customers like the quality and weight of the lock. For example, they mention it's a strong chain and lock combination, it'll deter theft and it'd be easy to transport. Opinions are mixed on the length.

AI-generated from the text of customer reviews

22 customers mention16 positive6 negative

Customers like the quality of the lock. They mention it's a strong chain and lock combination that provides good security in a small package. Some say that the lock is reliable and difficult to break or cut. Overall, customers are satisfied with the quality and functionality of the product.

"...in locking down both sides of my Golf Cart seat, to reduce the chances of battery theft...." Read more

"Great lock, it's long enough to wrap around frame and lock to a post. I usually use it just to lock the read wheel to frame...." Read more

"...Love how sturdy the chain feels and is covered with fabric and a rubber tube near the end...." Read more

"...Lock seems solid and provides good security in a small package." Read more

4 customers mention4 positive0 negative

Customers like the weight of the lock. They mention it's light weight, easy to transport, and worth every penny.

"worth every penny. Lighter than U-lock." Read more

"...It's not too heavy to encumber pleasure rides, and it doesn't scuff my frame due to the sheath over the chain. Good stuff." Read more

"I have the mini Kryptonite U-lock but this one is much easier to toss into my backpack - and when I want extra protection, carrying both with me is..." Read more

"Light weight..." Read more

3 customers mention3 positive0 negative

Customers find the lock easy to use, simple, and fast. They also appreciate the ease of setting combo.

"...The locks seem to work well and were easy to use." Read more

"liked ease of setting combo.not sure of diameter of cable without plastic cover" Read more

"I like the easy lockup mechanism, simple and fast!" Read more

8 customers mention5 positive3 negative

Customers are mixed about the length of the bike chain. Some mention that it's a good length to hang off the top tube to, and long enough to wrap around frame and lock to a post. They like the size, but the lock is difficult to unlock many times. That said, some say that it is too short in length and not long enough.

"Great lock, it's long enough to wrap around frame and lock to a post. I usually use it just to lock the read wheel to frame...." Read more

"...is you probably will only be able to get the frame, its not long enough to get a wheel and the frame unless everything is super close together...." Read more

"Perfect chain to wrap around your waist and cycle around. I can lock up two bikes with this chain." Read more

"Good small chain lock" Read more

Bike Stolen with Bolt Cutters
1 Star
Bike Stolen with Bolt Cutters
Used this lock to secure my 3G Bikes Women's Venice 7SPD bike in my apartment building's parking garage in front of my assigned parking space. The lock fit around the frame, wheel and through the steel cables. This is what I found when I got home yesterday afternoon. The thief must have used some serious tools to cut through that chain...
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Top reviews from other countries

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Tom
5.0 out of 5 stars Sturdy, secure and works
Reviewed in Canada on April 24, 2022
Amazon Kunde
5.0 out of 5 stars Top Angebot
Reviewed in Germany on January 27, 2024
Cliente de Amazon
5.0 out of 5 stars Muy buena en su tipo
Reviewed in Mexico on June 3, 2019
4 people found this helpful
Report
ALE
5.0 out of 5 stars Ottima allo scopo!!
Reviewed in Italy on June 23, 2020
Customer image
ALE
5.0 out of 5 stars Ottima allo scopo!!
Reviewed in Italy on June 23, 2020
Avevo bisogno di una catena di qualità per il mio Ninebot Max con le seguenti caratteristiche:
1. lunga il minimo per essere usabile nella maggior parte dei casi (piccoli paletti) e stivarla nel marsupio attaccato al manubrio
2. relativamente leggera (intorno al kg) ma con maglie quadrate e buon lucchetto
3. di protezione media perchè da usare solo in casi sporadici per qualche minuto (il tempo di entrare in un negozio in cui non posso portare il monopattino con me) o da lasciare in un androne privato abbastanza sicuro (ma non si sa mai!) per poco tempo.

Questa catena è perfetta e la chiave ed il meccanismo scorrono fluidamente (a patto di inserire bene a fondo la chiave). Confermo la lunghezza utile di 55cm. Certo che, se dovessi aver bisogno di più flessibilità e maggior sicurezza, allora opterei per la Kryptonite Evolution 4 da 90 cm che dalle mie ricerche è risultata il miglior compromesso (peso-qualità-affidabilità-costo) sul mercato (ma di ben quasi 3kg di peso).
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Mr Carlo Cappuccio
5.0 out of 5 stars Solid product
Reviewed in Australia on February 2, 2021