13 Best Mountain Bike Locks for Your Needs - We Found on the market

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 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

FOR ALL YOUR SECURITY NEEDS ▶ This Bike U-lock meets all your security needs: a Heavy Duty 16mm U-lock that is Durable and Easy to Use plus a 1800mm Cable that gives you solid security on every location. Enjoy your bike rides knowing your bike is secure!

SECURE AGAINST ATTACKS ▶ This Bike U lock is made of 16MM Hardened Steel and with the extra 1800 mm Flex Cable this U lock protects your bike securely wherever you go. Thieves will think twice with this lock and choose the next bike, you are secure!

EASY TO USE AND DURABLE ▶ Locking this U-lock is like a walk in the park: it opens and locks easily, has a smooth keyhole-cover and a cable that stores conveniently with the Velcro Strap. With this lock you will enjoy easy-locking season after season.

CUSTOMER SERVICE ▶ If this U-lock is not the favorite you ever owned - some say it is heavy, but that means it is secure - just return it and get a 100% refund. No questions asked. We stand for our products. Our customers love that, we know you will too.

GET IT TOMORROW ▶ If this lock meets your security needs, click "Add to Cart" to get your SIGTUNA 16mm Bike U lock with 1800mm Flex Cable tomorrow. Contact our customer service any time when you order and enjoy the bike security you get with this U-lock.

【Double-opening Head】Our DINOKA heavy duty bicycle u lock is a double-opening head, The thief needs to break the bike locks on both sides at the same time to open it, which is safer than a single-opening head ulock. The lock cylinder of the bicycle is made of C-grade pure copper blades and has a precise structure to prevent various technologies from opening. In addition, the bike u lock is equipped with 2 rust-proof copper keys with a complex snake-shaped slot, which is safer to use.

【Sturdy and Durable】This bicycle lock is made of 16mm/0.63 inch (including 0.1 inches friendly silicone sleeve) hardened high-performance alloy steel, which can resist cutting and lever attacks. Our bike d lock will provide more security for your bike.

【Convenient to Lock】The bike u-lock heavy-duty comes with 4 feet/0.48in steel cable which is coated with PVC covering to provide a greater locking method to protect your bike, suitable for bicycles, motorcycles, electric bike, scooters.

【Portable Size】The size of the u lock for bicycle is 7.9 in * 5.1 in, which is the same size of a 9.7in tablet and is convenient to carry. In addition, come with a mounting bracket that is suitable for all-round tripods with a diameter ≤ of 1.18in (30mm).

【Package Includes】You will get 1*bike ulock, 1*4ft flex cable, 1*mounting bracket and 2*keys, it is very easy to install according to our instructions. If you have any questions, please contact us and we will get back within 24 hours.

STURDY & DURABLE: Don’t risk your bike getting stolen! You’re in good hands with the Sportneer Bike U Lock which is cut-resistant, leverage-resistant and drill-resistant, made with 0.56in, high quality alloy steel. Covered in a 0.10in silicone cover, the lock will stay protected from wear and tear, while also protecting your bike from scratches.

ADDITIONAL 5 FT CABLE: Also included is a 5ft double-looped steel cable 0.43in thick (including PVC covering). You can use the cable to lock the frame, your helmet, the wheels, or other bikes. Secure your bike to bike racks, fences, poles and more!

PORTABLE U LOCK: This U-lock is heavy enough to keep your bike safe but light enough to carry around with ease. It measures 7.68in*4.9in and can be affixed to your bike with the mounting bracket, great for all circular tripods with a diameter of less than 30mm. Toss it in your backpack or attach it to your frame for easy access!

ADDED SECURITY: Get the same security as a car door or anti-theft door with this zinc alloy lock cylinder! The 2 included keys are rust resistant with advanced serpentine slots for added safety and security.

HELPFUL TIPS: This Bicycle U Lock can withstand up to 12 tons of hydraulic shear, protecting the bicycle from theft. Please note that no lock is 100% safe. Never leave your bike in high-crime areas or leave your bike unattended outdoors for long periods of time.

0.32inch-Diameter Ultra-Thick Chain: The thicker the bike lock chain, the more secure your property, which is why this heavy duty bike lock measures 8mm/0.32inches thick. Made of premium manganese steel, it’s cut and shear resistant to prevent bike theft.

Waterproof & Dirt-proof Cap: A dirty keyhole makes it difficult to open your lock, so to keep it dry and safe, we include a water and dust-proof cap for dirt and rust prevention. To make it easier to lock onto any object, the bicycle lock head is rotatable 360°. No more wasted time when you’re trying to lock your bike! (Note: For longer service life, please add anti-rust solution into the keyhole on a regular basis.)

Wear-resistant Protective Cover: Keep the bike chain for lock with keys in good condition as well as your bike thanks to the non-woven fabric, which resists corrosion and abrasion and prevents scratches and chips of your bike frame.

Sturdy Copper Keys: For the best strength and bend resistance, the keys of the heavy duty bike chain lock are made from pure premium copper, and won’t damage the lock cylinder. Comes with 2 keys so you can keep one at home for backup. You can even copy the key to have another one on hand as needed.

Locks More Than Bikes: It’s not just a bike lock, it can lock all sorts of things! Secure your gates, doors, scooters, motorcycles, generators and even sports equipment!

4-digit combination: 4-digit combination U lock, high-quality anti-theft lock cylinder, prevent thieves from using a universal key to crack your lock. The keyless use eliminates the trouble of losing the key and has higher security. Bracket not included

Solid lock shackle: The U lock shackle has undergone multiple heat treatment processes to increase the hardness and strength, and it is resistant to smashing, cutting and violence.

Dustproof cover: The locking mechanism adopts the flip cover design, which can not only prevent dust and sand, but also prevent rain from soaking the lock mechanism directly, extending the life cycle of U-shaped lock.

Pvc coating: The metal solid lock shackle is covered a PVC coating, and the engineering plastic a soft shell, which will not crack at low temperature nor deform at high temperature.

Dimensions: 16mm(Thickness），9.0 inches (Length) x 5.7 inches (Width) U bicycle lock - please note: Manual measurement for reference only.

✔️ 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,9.84 in (250mm) x 5.51 in (140mm) 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

✔️ durable all-weather protection – Via Vela 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 15mm, 280 mm x 150mm U shack to lock and go! Locking your bike and your wheels with 10mm x 120cm cable, fast and easy with our Quick, no-hassle system. Great bike safety tool

✔️ Amazing convenience and security – 3 keys for convenience! The bike U-lock comes with 3 keys. One with LED light, one with key replacement Code card from which we can help you to equip a new key when you lose them

✔️ reliable night time safety – unlocking in the dark is easy with the LED-lit multifunctional key. The light from the LED key can help you to approach the bike. No trouble for unlocking. The flashing key makes you cool

✔️ and Customer service: 3-year applies to U lock for us, CA, up, 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

Heavy duty bike lock provide your bike with more safety: 14.7mm heavy duty locks which is made of 13mm hardened steel and solid zinc alloy & 1.7mm PVC coating. Then it can resist your lock from hand tool’s cutting & leverage attacks, and provide your bike more safety.

PVC coating & dust cover: The whole lock is covered by quality PVC material coating for keeping your bike lock from scratching rusting and great appearance.

Free transportation bracket: Come with a free high-quality mounting bracket holder for easy transportation. Our bracket is suitable for bike circular tube:20-40mm, please measure diameter of your bike circular tube before placing an order. You could refer to our instruction to install the bracket.

Convenience and security: With keys design, no worry about forgetting your password combination.

What you can get: The security bike u lock which comes with 12mm*4feet steel cable and mounting bracket.

Compact and Delicate --- WOTOW 8 joints foldable bike lock with dimension of 12*6*4 cm / 4.72*2.36*1.57 inch(L*W*H) and weight of 28.2oz/0.80kg. The small shape make it not only easy to be stored in backpack or bike bags, but also can be attached on bike seat tube. It fit for many different bikes such as mountain bikes, road bikes and commuting E bikes.

Strong and Durable Material --- The folding lock is made of steel alloy. Each piece with thickness of 0.39inch, making it strong, durable and unbreakable, bolt cutter drill and saw proof. The black rubber coating outside the steel is soft and water resistant, not only help to keep it from scratching bike painting, but also protect the inside metal from corroding after years of use.

Long Chain and Reliable Protection --- WOTOW flexible foldable lock opens to 35inch / 90cm chain link circumference, can lock bikes to most nearby poles, trees, or other stands racks and bars easily. It also could lock 2 bikes together, provide protection for both when you do outdoor exercise with friends.

Safe and Simple Installation --- There are 3 keys attached in the folding lock, support to keep 1 in key chain, 1 in backpack and 1 for backup, no worry about keys missing. Before each riding, simply clip the folded lock on the mount bracket and it will stay out of the way until you need it. The adjustable diameter of the mount suitable for any size of seat tube.

Reflective Sticker --- The mounting come with a reflective sticker, which can help to alert other bikes or cars behind to avoid, provide night commuter and cyclists a safe night riding. Even when park bike on roadside, the reflective sticker still works to remind walkers in the dark.