13 best bicycle locks

• ✔️ DURABLE ALL-WEATHER PROTECTION – Via Velo bike U-lock with hexagonal PVC cover resists corrosion from water, dust and dirt to prolong the life of your lock. All-weather performance means peace of mind and better security
• ️ ✔️ EASY AND STRONG TO LOCK YOUR BIKE – The bike lock with thickness(including rubber casing):14mm,250mm x 150mm U shack to lock and go! Locking your bike and your wheels with 10mm x 180cm cable, fast and easy with our quick, no-hassle system. Great bike safety tool
• ✔️ AMAZING CONVENIENCE AND SECURITY – 2 keys for convenience! The bike U-lock comes with 2 keys. One of them you can take and use in daily life and the other you can leave at home in case the trouble when you lose one carelessly
• ✔️ SIMPLY INSTALLING BRACKET ON YOUR BIKE – Convenient high-quality mounting bracket means your lock goes with you, Our bracket is suitable for bike tube:20-42mm. Pls refer to our picture to install the bracket Value for your money
• ✔️ WARRANTY AND CUSTOMER SERVICE: 3-year warranty applies to U lock for US, CA, UK, EU Cyclists, 90-day money back policy, 24-hour online customer service. If you are not satisfied with it, you get a full refund unconditionally. Rest assured

User questions & answers

Question:	Mine came with a serial number. What (how) should I do with it
Answer:	Mine only has a number on the keys. I suspect like cars it allows initial duplication once you know the master number.
Question:	My son immediately lost one of the keys and now I'm living in fear he will lose the last one. Can I get a duplicate key
Answer:	There is a number stamped on the key. Should be able to contact the manufacturer to get a replacement
Question:	Is this a good lock for New York
Answer:	NO, it hefty U bolt lock is too small to use alone and the cable is an unruly mess that any decent bolt cutter can cut through unlike the U Bolt which would even slow down a reciprocating saw enough to stop a thief. The key lock design is pick and drill proof enough to not worry about even in NYC. MIne is on a $200 bike and I have never had any package stolen but I used to live in a bad neighborhood in Chicago. It is more like they would cut the weak cable and then lift the WHOLE bike and cut off the u Bolt once safely in their "lair". Since leaving Chicago I lave has no package stolen in about 30 years. I have had plenty undelivered by ONTRAC which Amazon no longer uses but that is another issue. I know this because I have 4K cameras everywhere that evidence whom is at fault. ONTRAC is the worst delivery service ever.
Question:	Does it have a cancer warning label ? I’ve noticed many locks do
Answer:	The plastic tube surrounding the steel cable may be made of PVC. A law in the state of California requires a warning label for certain chemicals. The label is standard: "This product contains a chemical which is known to the state of California to cause cancer, birth defects or reproductive disorders." It's called the Prop 65 Warning. PVC contains chemicals called phthalates, which mimic the effect of estrogen in the body. On a bicycle lock, exposure is not such a big worry. In a catheter or IVC tube, yeah.

Product features

Via Velo 2-in-1 Heavy Duty Bicycle Lock System - 14 mm (0.55 in) Bike U-Lock and 1800 mm (5 ft 10 in) Vandalproof Cable

Seamless security and added protection are yours in all weather conditions, anywhere you go. Our Via Velo 2-in-1 lock system, with 14 mm (0.55 in) U-lock pick, pull and drill-resistant double bolt locking mechanism and debris cover, combined with a 1800 mm (5 ft 10 in) woven steel cable, brings convenience and performance together. Includes a handy mounting bracket and 2 specialized safety keys.

Technical Specifications:

• Thick 14 mm (0.55 in) including rubber casing, heat-hardened steel shackle protects against cutting and leveraging.
• Shackle steel hardness (Rockwell scale) HRC50-HRC58 (through-hardened); cutting force strength 34.3 kN; pulling force strength 29.3 kN.
• Tough double bolt crossbar locking mechanism offers twice the security against prying and jacking.
• Pull and drill-resistant lock cylinder.
• Pick-resistant lock stops knocking and bumping.
• Flexible 1800 mm (5 ft 10 in) woven steel cable with smoke-grey transparent PVC coating secures both wheels, accessories and more.
• Convenient mounting bracket ensures safe and compact storage when cycling; no need to pack your lock in a separate carry case or knapsack.
• 2 keys specially designed to be difficult to copy.
• Product weight 3.2 pounds/1.45 kg

Additional Features: Lock debris cover keeps dust and dirt out of your lock. PVC protective coating material protects your bike from getting scratched. Resists corrosion from water, dust and dirt to prolong the life of your lock.

Lock Maintenance: For best operation, be sure to clean and lubricate the cylinder and the locking mechanism regularly with a light spray, such as WD-40 HIGH PERFORMANCE PENETRANT.

Key Guard Program – Register Your Unique Key Code Today

Have you ever wondered how will you open your bike lock if you lose your keys? With Via Velo's Key Guard Program, there's no need to worry! Register your unique Via Velo key code today so we can ship you new keys globally if the need arises. It's as easy as 1,2,3:

1. Register your unique key code on our website.
2. Never worry about losing your keys.
3. If you ever lose your keys, visit our website and click "ORDER KEY”.

Expertly Designed Lock for Superior Security

• Designed for functionality and maximum protection.
• Durable and simple to use when you’re on the go.
• Best for medium to high-crime areas.

Keep your bike secure everywhere!

• Double bolt mechanism locks the shackle to the crossbar in two places, protecting against pulling, leveraging and twisting.
• Crossbar’s reinforced external sleeve provides additional security against drilling.
• Crossbar’s reinforced internal housing protects from twisting or leveraging attacks.

Easy-to-install mount lets you take your lock everywhere, no extra packing required!

• High-quality mounting bracket attaches your lock to your bike while riding.
• Fits 99% of bike frames on the market (20-42 mm or 0.79-1.65 in)
• Mount rotates 360 degrees with M5 allan key to fit the lock in your bike frame or alongside it.
• Quick-release mounting bracket makes it easy to detach your lock.
• Comes with a non-slip pad to help keep the mount in place.

Product description

The Master Lock 8143D Preset Combination Cable Lock is 4ft (1.2m) long and features a 5/16in (8mm) diameter braided steel for maximum strength and flexibility. The protective vinyl coating protects against scratches. The 4 dial combination security offers keyless convenience. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

• Bike lock is best used for basic security as a theft deterrent
• Preset four-digit combination bicycle lock for keyless convenience; combination cannot be changed
• Bike lock cable is self-coiling and features braided steel for strength and flexibility
• Protective vinyl coating prevents the cable from scratching your bike
• Bike cable lock is 4 ft (1.2 m) long with 5/16 in. (8 mm) diameter cable (includes vinyl coating)

User questions & answers

Question:	How water-resistant is this lock
Answer:	I have had it outside for a while in the rain, with no issues. However, if gets cold enough to freeze, the lock stiffens up quickly.
Question:	I cant open the lock !! the code isn't listed anywhere
Answer:	did not have a lock code tag when it arrived.
Question:	What is the diameter of the loose end that goes into the lock? I need it to fit inside of a 5/8 inch hole
Answer:	Loose end is 5/8 diameter
Question:	Can you set your own combination
Answer:	According to the Manufacturers website it is a fixed combination.

Product features

Factory Set Combination

Four digit combination security for keyless convenience. Suggested for use as a bike lock, gate lock, lawnmower lock, and ladder lock.

Strength & Security

High-performance braided steel cable provides strength, flexibility, and resistance to cutting and sawing. Protective vinyl coating for added weather and scratch resistance.

Convenience

Self-coiling design for easy use and storage.

• Keyless Secure Lock Mechanism: This bike chain lock has advanced 5-digit combination lock, allowing up to 100,000 possible codes making it nearly impossible to crack. Keyless convenience
• Durable Cut Resistance Cable: This bike lock cable is made from 0.27 inch extra thick manganese steel for cut resistance and protective zinc-plated coating to prevent from scratching
• Easy To Set/Reset: Easy to set and reset your own personalized number combination
• Long Flexible Cable: This bike lock is 3.2 feet long, ideal for bicycles, bike, ladders, lawnmowers, gates, fences, tool boxes, bbq, sport equipments and etc..
• Waterproof & Dustproof Cover: A flexible cloth sleeve which covers the chains to protect it from being scratched and sawed, long lifespan

User questions & answers

Question:	how thick is the steel
Answer:	Thanks for the question. Kindly be advised that this bike lock cable is made from 0.27 inch extra thick manganese steel for cut resistance and protective zinc-plated coating to prevent from scratching. Thanks.
Question:	what are the specs on this. prop 65 warning
Answer:	I have not heard about a warning I have no problems with my lock
Question:	My lock got jammed and won’t reset and the combination is not working? What should I do
Answer:	You can try greasing the mechanism with some WD-40 or some silicone and seeing if that will give you enough lubricant to twist it and get it to reset. I have not personally had this problem with the lock, but I have had that issue with other locks and if that won't help then you might just need to buy another one
Question:	What if I forget the combination
Answer:	Use a combination number that means something to you. Your birthday, an important date in history etc. To back that up, enter the number in your phone directory.

Product features

Sportneer Bicycle Lock, 5-Digit Resettable Combination 3.2 FT Bike Chain Cable Locks

Protect your bike against theft with Sportneer's Secure Advanced Bike Chain Lock. The 5-digit combination allows up to 100,000 possible codes making it nearly impossible to crack.

Best of all, it allows for keyless convenience. It is built to last, with durable cut resistance cable made from manganese steel and an protective exterior coating to prevent from scratches.

Durable Cut Resistance Steel Chain Lock

This bike lock cable is made from 0.27 inch extra thick manganese steel for cut resistance and protective zinc-plated coating to prevent from scratching.

Specifications:

-Item Weight: 1.48 pounds

-Item Size: 39" L x 0.27" D

-Package Dimensions: 6" x 4.8" x 2.8"

-Material: High quality manganese steel chain

Package Includes:

-1x Combination Bike Lock

Premium Strong Lock Components

Solid Zinc Alloy Cylinder with strong lock plug allows you to have peace of mind knowing your bike is locked and secure.

This bike chain lock has advanced 5-digit combination lock, allowing up to 100,000 possible codes making it nearly impossible to crack. Keyless convenience!

• SECURE & RESETTABLE: Smart 5-digit resettable combination chain lock, much safer than other 4 digit locks. Easy to set your own personalized number combination.
• BRAIDED STEEL & PVC COATING : The bike cable is made of high strength braided steel wire, which can withstand 2.4KN tension and 7KN shear force, more strength and flexibility. And the protective vinyl coating(PVC) helps prevent scratching more durable wear.
• SELF COILING & MOUNTING BRACKET :4 Feet by 1/2 inch cable is long enough for different users; Self coiling design make it easy to carry; Equipped with complimentary mounting bracket, the lock can be easily added to other objects; The quick installation button makes it install or remove the lock conveniently.
• CONVENIENT TO USE: Combination locking mechanism provide keyless convenience and set your own password by easy steps. With keyless convenience lock, you don’t worry about lost the key and forget to carry it.Code design saves you from the hassle of carrying keys. The code is resettable - there are 10,000 combinations you can set, which makes the chances to crack the code only 1/10,0000. The default code is 00000.
• MULTI-PURPOSE: The cable is 4 feet, long enough to lock 2-3 bikes together, or lock your bike to a tree, gate, fence, railing, thick pole and others. The lock can also be used for motorcycles, scooters, skateboards, grills, ladders, doors, lawnmowers and many others.

User questions & answers

Question:	Can it connect my wife's thoughts with mine together? There will be no arguing about trifles
Answer:	No sadly. There's no understanding a woman's thought process.
Question:	Can 2 or more of these locks be connected in series to form a longer one or is "key" end unique to each so won't fit into "barrel lock" end of another
Answer:	This is a very good question. I deliberately removed two locks for testing, carefully looked at their shape, the shape is the same, so multiple can be connected in series, after testing is also possible.
Question:	When i set up the lock and picked a combination. of course i didn't write it down so i forgot it. what can i do
Answer:	Set combo to 00000 to open. Rotate set knob clockwise. Set your new combo. Rotate set knob counterclockwise.
Question:	my lock will not unlock. I put in my set passcode but still will not open. Anyone have issues with this
Answer:	It just happened to me. I set my own password and it won’t open. It seems like reset knob is so loose so when I lock my key, it turn itself and set password whenever the code I locked. It sucks. Anyone has idea to unlock?

Product features

Step 1

Set the default combination "00000" at the line with two bumps to open the lock.

Step 2

Rotate the "RESET" knob 90 degrees right.

Step 3

Turn the dials to set your new personal combination. such as "00009".

Step 4

Rotate the "RESET" knob 90 degrees left to the original position.

• STURDY & DURABLE: This bike lock is made of 16mm/0.63inch(including 0.1inch environmentally silicone cover) alloy steel which is cutting-resistant, leveraging-resistant, and dill-resistant. The bicycle lock will provide your bike with more safety.
• SAFER: The lock cylinder of the bike lock is made by C grade pure copper blade, which has a precise structure to prevent technical opening. The bike u lock comes with 3 rust-resistant copper keys that have complex serpentine slots, it will be safer.
• CONVENIENT USE: This bike lock comes with a 4feet double looped ends steel cable which is coated with PVC covering, and the whole diameter of the cable is 0.48inch. It will provide your bike with greater locking flexibility and better protection.
• PORTABLE SIZE: The size of the bike lock is 7.68inch*4.9inch. Comes with a mounting bracket that is suitable for all circular tripod in diameter ≤30mm. With the portable size, you can put the bike u lock into your bag or mount it on the frame of your bike.
• EASY INSTALLATION: The mounting bracket holder is easy to install which enables you to store your bike lock quickly when out on a ride. The silicone cover of u lock will protect your bike from scratches. And it will prolong the life of your u lock.

Product features

Bring you more security and you can enjoy more rides with your family or friends.

The bike lock is made of alloy steel which is of high tenacity for strong cut resistance. The steel cable is covered by PVC material coating to keep your bicycle lock from scratching or rusting. Besides, this bike u lock can resist 12 tons of hydraulic shear which will bring you more security and flexibility to lock your bike.

Dimentions

Outer dimensions of U lock: 195mm*125mm/7.68inch*4.9inch

Inner dimensions of U lock(usable space): 145mm*65mm/5.71inch*2.56inch

Shackle (including rubber coating) diameter: Varies between 16mm/0.63inch -18mm/0.71inch. It's 16mm/0.63inch at the U and tapers thicker at the ends.

Shackle (metal only) diameter: 13.5mm/0.53inch

Diameter of crossbar: 31mm/1.22 inch

Sturdy & Comfortable!

Made of alloy steel, the 13.5mm/0.53inch shackle is hammers resistant, anti-prying, skeleton keys resistant and hydraulic shear resistant. Covered with environmental silicone, the bicycle lock can help to resist dust, dirt and scratching, thus to prolong the life of your bike u lock.

Bring more safety for you!

The lock cylinder of this U lock is made by C grade pure copper blade, it will make any thief think twice before trying to steal your biycycle, thus increase safety factors of your bike or accessories. With this bike cable lock, your bike will be effectively protected.

3 keys for convenience!

This bike U lock comes with 3 pure copper keys, so you'll always have a spare one. This key makes duplication difficult and can prevent technology unlocking as it has complex serpentine slot. It will bring more security for your bikes and accessories.

Notice

1. Please keep the lock cylinder clean and dry during daily use.

2. If the bike lock is difficult to open because of sediment or long time of not using, some pencil lead powder can be added to solve this problem.

3. Never leave your bike in remote places or leave your bike unattended for a long time.

Different Usage

This bike lock comes with a portable u lock and a 120cm/4feet double looped steel cable. The diameter of the cable is 11mm/0.43inch(including PVC cover).

The u lock and bike lock cable can be used individually. Cable that included allows you to lock not only the frame, but also both wheels.

Operating Temperature

The U lock:

-30℃~+150℃/-22℉~+302℉

The Steel Cable:

-20℃~+60℃/-4℉~+140℉

Package Including

1 x Black Bke U lock

1 x 120cm/4feet Flex Cable

1 x Mounting Bracket

3 x Keys

• Secure & portable: The key can only be pulled out when locked, which prevents the key from being lost. Titanker bike lock comes with 2 keys. You can take one of the keys to use in daily life, and you can leave another key at home in case you accidentally lose on
• Heavy duty high quality: With 6mm thicker security heavy-duty chain links, our bike lock is made of heavy-duty steel known for it cut-resistance. Lubricate the lock hole and keyhole regularly, this will prolong the lock's service time
• Protective cloth sleeve & dust Cover: Chain is enclosed in protective cloth sleeve, which effectively protects the chain from rusting and scratching
• Easy to lock: You don’t need the key to lock, just snap it together go when you lock it. Safety Tips: Never leave your bike locked outside for long periods of time. Especially in high crime areas. No bike lock is 100% secure
• Portable safe size: The overall length of the chain lock is about 3.3 feet. The links are about 1.97 inches long and about 0.23inches inch thick. Lock Weight: 1.76 pounds

User questions & answers

Question:	How wide is a chain link? I'm trying to fit it through about a 1 inch hole
Answer:	We use it to lock the sliding barn doors together. I'm guessing that the chain and the covering will not fit through an inch hole. It is a very nice lock.
Question:	Is it long enough to lock to a post and through the front wheel and frame
Answer:	Yes it is. Great lock for the price. Have not had any issue. Quality is great
Question:	Is the weight difference between the 6mm and 8mm worth it, harder for thieves to cut the 8mm than the 6mm
Answer:	Yes I believe it is worth it.
Question:	Where is the key hole? All i see is some button that wont push down despite all my might
Answer:	Gently slide red tab button to the center of lock where you would place the key.

• 12.7mm Hardended Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks; 10mm Steel Looped Cable For Additional Security
• Interior Locking Dimensions; 4" x 9" Cable Length; 4"
• Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• Anti-Theft Protection Offer; Up to $1,750 Reimbursement
• Lifetime Warranty

User questions & answers

Question:	The add is for a new u kryptolock series 2. first photo shows a new u kryptolok series 2. the second photo shows just a kryptolok. which is it
Answer:	This is for the kryptolock + flex cable.
Question:	I locked this into my bike in a dry basement. two months later i unlocked it. now i can not relive it
Answer:	the make a graphite aerosol for locks. refrain from products like wd40etc. they attract dust and grit eventually causing failure. Also, when has it become the norm to troll Amazon posts. relieve would refer to the lock going back to a functional position.
Question:	Is this rust resistant
Answer:	Have had this outside for over 1 year with no rust. Cable is vinyl coated.
Question:	how long is the steel cable
Answer:	It’s about 4’ long, won’t go around both tires but does just fine for the back or front tire.

Product features

KryptoLok STD U-Lock with 4" Flex

Shackle Size

12.7mm performance steel shackle with new hardened double-deadbolts to engage both ends increasing holding power.

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 you 2 keys, globally, in the event you lose them.

Stainless Steel Keys

2 stainless steel keys with ergonomic design to reduce the amount of torque.

• 🎁Special gift for family🎁
• ★ RESETTABLE SECURE LOCK - 4 digit combination locking mechanisms for keyless convenience, prevent thieves use universal key to unlock your lock and never worry forgot the key. Stronger anti-theft performance, providing you high security
• ★ DURABLE BIKE LOCK - the lock cylinder is made of zinc alloy, strengthened by the electroplating process, which can extended using life; Flexible steel cables for strong cut resistance and PVC coating helps anti-cutting and keeping more durable
• ★ EASY TO CARRY- 4 Feet*1/2 inch self coiling cable design make it easy to carry; Equipped with FREE mounting bracket (suitable for bike's tubing or seat post diameter is 1" and don't over tighten the screws), makes install or remove lock conveniently
• ★ MULTIPURPOSE - The multiuse cable lock is designed with suitable size to release and lock, ideal for Bicycle, Motorcycle, Skateboards, Sports Equipment, Gates & Fences, Grills & Lawnmowers, Tool Boxes & Ladders
• ★ WAHT YOU GET – HCL1C Bike Lock, Mounting Bracket, User Manual

User questions & answers

Question:	Does anyone know the exact weight of this cable
Answer:	1.3lb
Question:	How do you set the combination
Answer:	There is instructions in the box it was pretty
Question:	Hello, I reset the cylinder to my desired combination. It worked fine after the restt once. The next time the lock would not open. Now what
Answer:	Try 0000 maybe it didn’t take
Question:	I went to lock my bike like normal, and suddenly the lock didnt want to go in all the way. Is this something that has happened before? I need help
Answer:	Sometimes the tumblers may have rotated, either between numbers, or just off the correct ones. Set each to your code to open it and it should be fine. Otherwise I'm not sure what the problem is.

• ❤️ 4-digit combination locking mechanisms for keyless convenience, easy to use
• ❤️ Engineering plastic shell and flexible steel cables, solid durable
• ❤️ Only 2 feet length, more convenient to use and carry up
• ❤️ Easy to set your own personalized number combination, but please don't forget the number
• ❤️ Ideal for bicycles, skateboards, sports equipment, fences, tools, tool boxes

User questions & answers

Question:	Can this bike work for a 24 inch bike
Answer:	This lock doesn't work at all. I returned mine after it permanently locked even though I had just set my new code.
Question:	I put this on my bike and i still know the password. but when i try to put it in with the arrows next to the numbers it still will not open. help
Answer:	Dear friend Thank you so much for your message. Please kindly email us by detailing your order number. If you can include pictures or videos in your email, that will speed up the process. We will reply to you and resolve your problem ASAP. Don't worry, this product is backed by our satisfaction guarantee, if the item you get is defective, we will fully take responsibility and send replacement! Thanks !
Question:	Does this lock come with a bike mount, or is there no way to carry it on your bike when you ride
Answer:	I just wrap it several times around the center tube of the bike and then secure the lock. Works pretty good.
Question:	How much does it weigh
Answer:	I have not actually weighed but I believe that it weighs no more than 1 pound.

Product description

The Master Lock 8114D Set Your Own Combination Bike Lock is 6ft (1.8m) long and features 5/16in (8mm) diameter braided steel for maximum strength and flexibility. The protective vinyl coating protects against scratches. The 4 dial combination security offers keyless convenience. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.

• Bike lock is best used for bicycles, ladders, lawn mowers, and sports equipment
• Set your own four digit combination bike lock for keyless convenience, set and reset your combination allowing for thousands of personalized combination code options
• Cable lock is made from braided steel for strength and flexibility; Protective vinyl coating helps to prevent scratches
• Bike cable lock is self-coiling for easy storage
• Bike lock is 6 feet (1.8 meter) long with 5/16 inch (8 millimeter) outside diameter (includes vinyl coating)

User questions & answers

Question:	Can two of these be linked together to make one long cable
Answer:	Great question. As long as both cables are identical I don't see why not. Thanks for the idea. I may buy another one and do that myself!
Question:	I threw away my packaging... what is the default code to unlock when first opening
Answer:	0-0-0-0
Question:	what is thickness of the lock itself- both pieces need to fit thru small opening for my application
Answer:	The lock is large. Maybe an inch in diameter.
Question:	What cable with lock to secure outside grill
Answer:	This would be a great cable to secure a grill

Product features

Set Your Own Combination

Four digit combination security for keyless convenience. Suggested for use as a bike lock, gate lock, lawnmower lock, and ladder lock.

Strength & Security

High-performance braided steel cable provides strength, flexibility, and resistance to cutting and sawing. Protective vinyl coating for added weather and scratch resistance.

Convenience

Self-coiling design for easy use and storage.

• 16mm Hardended Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
• Interior Locking Dimensions; 4" x 10.25"
• Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
• Anti-Theft Protection Offer; Up to $4,000 Reimbursement for 1 Year Included
• Lifetime Warranty

User questions & answers

Question:	Can multiple locks be purchased that are Keyed alike
Answer:	Yes, they can. Contact Krytptonite directly. It is very handy as a family or even one person with multiple locks/bikes.
Question:	What is the difference of the $60 2017 version and the $100+ standard versions available
Answer:	I'm not sure it might be just a good deal or it may not come with the mounting bracket check in the description. If it doesn't say talk to the manufacturer. You'll need a specific information about that product
Question:	In the details it says 4x10 but at the end of the video it says a 4x8, what size it
Answer:	The minimum inside dimensions are 4” x 101/2” on the one I ordered from Amazon.
Question:	Is there anyway to get a replacement key for your lock
Answer:	Yes, as long as you registered your lock before. Replacement keys are free, btw

Product features

New York Lock LS

Shackle Size

16mm hardened max-performance steel shackle with new hardened double-deadbolts to engage both ends increasing holding power.

Anti-theft Protection

Register your product online to activate the optional Anti-theft Protection Offer. 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

3 stainless steel keys — including new key design and one LED replaceable key fob.

• Reflective fabric lights up when it encounters artificial light for better visibility at night
• Fabric sleeve protects your bike from scratches
• Thick 8mm chain link under sleeve helps deter theft
• 3-foot long chain length for convenient locking
• Includes 2 keys

User questions & answers

Question:	Could this lock be used for a closet in a dorm room
Answer:	This heavy duty 8mm braided self coiling cable is 6 feet long and comes with a set of keys. You can lock up your dorm room closet if that's what you'd like to use it for. Thanks!
Question:	What prevents someone from pushing orange button and releasing
Answer:	The lock clips on while you are riding. When you lock your bike, you remove luck from the place where you attach it and loop it around frame and wheel etc and then push plug into the other end of the cable to lock it
Question:	Hi.. Do you have to use the key to lock it or can you just snap it together and go? Thanks
Answer:	No key to lock, just snap the ends together
Question:	can this lock be cut with a cable cutter
Answer:	Yes, mine was yesterday when my bike was stolen. The cable looked like it was cut through cleanly in one chop.

• 🚴 Sturdy and Durable - Quality Zinc Alloy and ABS made lock, sturdy and durable with high grade of anti-theft, anti-breaking and anti-cutting function. The hamburger lock material are zinc alloy and ABS special material, which have the function of Anti-theft, anti-cut, tamper-proof.
• 🎁 Theft-Proof and Waterproof Design - The lock core surface is fully sprayed with rubber lacquer, and the anti-impact bumper during transportation reduces noise, effectively preventing damage to the bicycle frame, and can be directly locked on the lock frame, protecting the folding lock and preventing the lock from being locked.
• 🚴 High Class Stainless Steel Keys - 3 high class stainless steel keys，distinguished key mouth design to avoid mix opening. Also there are serial numbers, if lost, key remake is available.
• 🎁 High Security - Bicycles are mostly quick-release seats,there are security risks, can easily take away. Wheel and seat distance of 23cm or less, can lock the wheel and seat. after folding, the bike lock size 5cm * 7cm, compact, lightweight and convenient to store in top tube bag, saddle bag, etc.
• 🚴 Easy To Carry, Compact, and Flexible - The Folding lock fits most bikes, it only weights 575g easy to carry featuring special rivets that make folding easy.

User questions & answers

Question:	Why is the orange link abs plastic??? much more vulnerable than the steel links
Answer:	Hello Larry, about the oragne link abs, it’s just that a layer of rust-proof orange plastic is used on the OUTSIDE, and strong stainless and cut-proof steel is used INSIDE, so you don’t have to worry about it's quality. And we use orange link just to make it more visible and make it more convenient for you to take out the lock, hope this can help you. 😁 😁 😁
Question:	Can I order 3 locks with identical keys
Answer:	Our locks are equipped with the same keys, each lock has 3 keys. So if you buy 3 Folding Bike Locks, you will have 9 identical keys, and all keys are applicable to these 3 locks, hope this can help you and have a wonderful day ❤️ ❤️ ❤️ 😃 😃 😃
Question:	I live near the coastline, are the links and the lock mechanism rust resistant/ proof
Answer:	Our folding bike lock is made of Sturdy Aluminum Alloy Steel and ABS material, which has a good Anti-Rust effect; And the outer surface of the aluminum alloy chain is also coated with a layer of Anti-Rust Material, so you don't have to worry about being corroded and rusted by the seawater carried in the sea breeze, hope this can help you 😃 😃 😃
Question:	just received it and it seems like the small joints are flimsy.....if you bend it hard enough with your hands, will it break
Answer:	Hello friend, our bike locks are all made of stainless steel. Why does the outside of the bike lock look like plastic? Because we have applied a layer of ANTI-RUST material on the outside of the bike lock. So you don’t have to worry about the quality of the bike lock 😉 😉

Product features

West Biking Heavy Duty Alloy Steel Folding Bike Lock, STRONG & DURABLE, make sure your bike is totally safe ! ! !

• Strong Alloy Steel
• Foldable & Space Saving
• Upgrade Lock Cylinder
• Reinforced Riveting Design
• Comes with an Easy-to-Install Bike Lock Mount
• 3 Laser-Cut Abloy Keys
• Waterproof Design
• MULTIPURPOSE: Ideal for bicycles, skateboards, gates & fences, grills & lawnmowers, sports equipment, tool boxes & ladders ! ! !

Heavy Duty Bicycle Lock

Specification

• Zinc Alloy with Special ABS Material, Wear-resistant and Anti-pressure
• Multiple Install Position: Space saving, comes with bracket and tools
• Alloy Steel: 3 minutes didn't broken, noise has already spread
• DISK mechanical valve lock cylinder, no spring structure
• Suit For: Bike, E-bike, Motorcycle etc

Violence Test

• Anti-Cutting
• Anti-drilling
• Anti-smashing

Ultra Protected Rivets

Rivets are designed with VSR technology which protects against sawing and cutting ! ! !

Widely Used

80cm length, It is the perfect lock for bicycles, motorcycles, electric bicycles, scooters and all other two-wheeled vehicles that want to prevent theft.