By Nora FairbanksUpdated November 2026
Choosing the best motor bike lock comes down to how and where you park. A disc lock that works well in a driveway may not hold up in a city garage, and a chain that suits a scooter may be too short for a full-size motorcycle. This guide compares seven locks sold on Amazon US, grouped by the needs they serve best. Each pick is judged on the criteria that matter most to motorcycle and scooter owners: the type of lock, the security approach, length and weight, weather resistance, and how easy it is to carry.
Our top picks at a glance
- 1
TOP CHOICEBest overallKryptonite Keeper 712 Bike Chain Lock, 4ft Heavy Duty Anti-Theft LockView on Amazon - 2
TOP CHOICEBest for long chainsKryptonite Keeper 785 Bike Chain Lock, 2.8 ft Heavy Duty Anti-Theft LockView on Amazon - 3
TOP CHOICEBest for alarm protectionURBAN UR6 Hi-Tech Motorcycle Disc Lock with Smart AlarmView on Amazon - 4
Best for portable disc securityAlarm Disc Lock Motorcycle Disc Brake LockView on Amazon - 5
Best for keyed flexibilityHeavy Duty Anti-Theft Bicycle Chain Lock, 2.72 Ft Security Bike Locks with 3 KeysView on Amazon - 6
Best budget pickSportneer Bike Lock U-Lock Heavy Duty Anti TheftView on Amazon - 7
Best keyless optionSportneer 5 Digit Combination Bike Chain Lock, 3.2/3.6/4ftView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Kryptonite Keeper 712 Bike Chain Lock, 4ft | Overall security with a chain | 7mm hardened steel links, two keys |
| Kryptonite Keeper 785 Bike Chain Lock, 2.8 ft | Long chain, wrapping larger frames | 7mm manganese steel links, disc-style cylinder |
| URBAN UR6 Hi-Tech Motorcycle Disc Lock | Alarm protection at parking spots | 120dB alarm with LED and sensitivity setting |
| Alarm Disc Lock Motorcycle Disc Brake Lock | Quick disc lock with a carry pouch | 110dB alarm, 7mm pin, 5ft reminder cable |
| Heavy Duty Anti-Theft Bicycle Chain Lock, 2.72 Ft | Flexible locking with keys | Three keys, waterproof construction |
| Sportneer Bike Lock U-Lock | Budget-minded riders | 17mm shackle with mounting bracket |
| Sportneer 5 Digit Combination Bike Chain Lock | Riders who avoid carrying keys | Keyless combination, 4/6mm thick links |
Kryptonite Keeper 712 Bike Chain Lock, 4ft Heavy Duty Anti-Theft Lock
Weather-resistant, 120cm long, hardened steel 7mm links, 2 keys, 5/10 security rating, for motorcycles, scooters, or gates Kryptonite Keeper 712 Bike Chain Lock, 4ft Heavy Duty Anti-Theft Lock For another angle, check out 7 Best Motor Bike Helmets with Bluetooth for Commuters and Riders (2026).
Best for: Overall security with a chain
This is a strong all-round choice for riders who want a chain they can loop through a fixed object and a wheel or frame. Owners often describe it as a good balance between weight and protection.
Key specs
- Length: 4 ft (120 cm)
- Hardened steel links, 7mm
- Two keys included
- Weather-resistant construction
Pros
- Reaches around most fixed posts and wheels
- Weather-resistant finish suits outdoor parking
- Two keys reduce the chance of being locked out
Cons
- Heavier than a cable lock, which matters for daily carry
- Chain links can scratch paint if not padded
Bottom line: A good first pick for riders who want reliable chain security without a specialty tool.
Kryptonite Keeper 785 Bike Chain Lock, 2.8 ft Heavy Duty Anti-Theft Lock
7mm Manganese Steel Links, 85cm Length, Disc-Style Cylinder, Nylon Sleeve for Motorcycle, Scooter, Gate, Fence Kryptonite Keeper 785 Bike Chain Lock, 2.8 ft Heavy Duty Anti-Theft Lock
Best for: Long chain, wrapping larger frames
This lock suits riders who need to pass a chain through a larger frame or around a thicker post. The shorter length is more compact to carry, but it still uses a heavy-gauge link design.
Key specs
- Length: 2.8 ft (85 cm)
- Manganese steel links, 7mm
- Disc-style cylinder
- Nylon sleeve to protect finishes
Pros
- Nylon sleeve helps protect paint and chrome
- Disc-style cylinder resists common picking tools
- Compact enough for a saddlebag
Cons
- Shorter length limits what it can wrap around
- Lock weight is noticeable when carried every day
Bottom line: Best for riders who need a chain that reaches around larger frames and wants a protective sleeve.
URBAN UR6 Hi-Tech Motorcycle Disc Lock with Smart Alarm
URBAN UR6 Hi-Tech Motorcycle Disc Lock with Smart Alarm | Best Value | 120dB, LED, Warning, A+ Sensitivity, Truly Waterproof, Long-Life CR2 Battery, Carried Locked, Bike Anti Theft Wheel Brake Locks
Best for: Alarm protection at parking spots
Riders who park on streets or in public lots often want a deterrent that announces a tampering attempt. This disc lock combines a locking pin with an alarm and LED indicator.
Key specs
- Alarm output: 120dB
- LED indicator
- Adjustable sensitivity setting
- Battery type: CR2 (per manufacturer)
Pros
- Loud alarm draws attention to tampering
- Adjustable sensitivity suits different parking environments
- Designed to be carried locked to the disc
Cons
- Alarm depends on battery condition; check it regularly
- Disc locks are a deterrent layer, not a standalone solution
Bottom line: A strong choice for urban riders who want an alarm as an added layer.
Alarm Disc Lock Motorcycle Disc Brake Lock
Anti-Theft Waterproof 110 dB 7mm Pin 5ft Reminder Cable for Motorcycles Bike Scooter Carry Pouch (Black) Alarm Disc Lock Motorcycle Disc Brake Lock
Best for: Quick disc lock with a carry pouch
This option targets riders who want a compact alarm disc lock that is easy to pack. The included reminder cable is useful for keeping the lock attached when not in use.
Key specs
- Alarm output: 110dB (per listing)
- 7mm locking pin
- 5 ft reminder cable
- Carry pouch included
Pros
- Carry pouch makes it easy to stow
- Reminder cable reduces the chance of leaving it behind
- Good for scooters and smaller motorcycles
Cons
- Pin diameter is modest compared with heavier locks
- Works best as a secondary lock, not the only one
Bottom line: A practical pick for scooter and light motorcycle riders who want a portable alarm disc lock.
Heavy Duty Anti-Theft Bicycle Chain Lock, 2.72 Ft Security Bike Locks with 3 Keys
Bike Chain Lock, Heavy Duty Anti-Theft Bicycle Chain Lock, 2.72 Ft Security Bike Locks with 3 Keys, Waterproof Lock Chain for Bike, Bicycle, Scooter, Motorcycle, Door, Gate, Fence
Best for: Flexible locking with keys
A three-key chain lock suits households where more than one rider shares a lock. The waterproof construction is a practical advantage for riders in wet climates.
Key specs
- Length: 2.72 ft
- Three keys included
- Waterproof construction (per listing)
Pros
- Three keys make sharing easier
- Waterproof build suits outdoor storage
- Works for bikes, scooters and motorcycles
Cons
- Shorter length limits wrapping options
- Specific steel grade and link thickness are not stated in the listing name
Bottom line: Good for shared households and riders in wet climates who want a keyed chain.
Sportneer Bike Lock U-Lock Heavy Duty Anti Theft
Sportneer Bike Lock: Heavy Duty Anti Theft Bike U Lock with 5ft Security Steel Cable – 17mm Shackle Bicycle U-Locks with 2 Keys & Mounting Bracket for Road Mountain Bike, Size 7.76''x5.02'', 1.64lb
Best for: Budget-minded riders
A U-lock is a compact, rigid option for securing a wheel or frame to a fixed object. This model is a budget pick that comes with a mounting bracket and a cable for the second anchor point.
Key specs
- Shackle: 17mm
- Includes 5 ft security steel cable
- Two keys and a mounting bracket
- Weight: about 1.64 lb (per listing)
Pros
- Light for a U-lock
- Mounting bracket keeps it accessible
- Cable extends reach to a second anchor
Cons
- Shackle size limits what it can lock around
- Designed primarily for bicycles, so check fit on motorcycle frames
Bottom line: A sensible budget choice for riders who want a compact U-lock with a cable add-on.
Sportneer 5 Digit Combination Bike Chain Lock, 3.2/3.6/4ft
Sportneer Bike Lock: 5 Digit Combination High Security Anti Theft Bike Chain Lock – 3.2/3.6/4ft Heavy Duty Keyless Bicycle Lock for Bike, Motorcycle, Scooter, Door & Gate – 4/6mm Thick, Easy to Use
Best for: Riders who avoid carrying keys
A combination chain removes the risk of losing a key. It suits riders who park often and want quick, keyless access.
Key specs
- Lengths: 3.2, 3.6 or 4 ft
- 5-digit combination
- 4mm or 6mm link thickness (per listing)
Pros
- No keys to lose or carry
- Multiple lengths offered
- Suits bikes, motorcycles and scooters
Cons
- Combination locks can be slower to operate than keyed locks
- Thinner link options offer less resistance than heavier chains
Bottom line: Ideal for riders who prefer keyless convenience and choose the thicker link option for stronger security.
Buying Guide
Lock Type: Chain, Disc, or U-Lock
Chains are flexible and wrap around many objects, disc locks are compact and stop the wheel from turning, and U-locks offer a rigid, compact shackle. Many riders use two types together. Pair a disc lock with a chain for layered protection.
Good picks for this: Kryptonite Keeper 712 Bike Chain Lock, URBAN UR6 Hi-Tech Motorcycle Disc Lock
Link Thickness and Shackle Size
For chains, thicker links resist cutting better, while heavier links add weight. For U-locks, a larger shackle fits more objects but is harder to carry. Check the manufacturer’s stated thickness or diameter rather than guessing from appearance.
Good picks for this: Kryptonite Keeper 785 Bike Chain Lock, Sportneer Bike Lock U-Lock
Length and Fit
Measure what you need to lock to. A 4-foot chain gives more reach than a 2.7-foot model, but longer chains weigh more. Confirm the lock fits around your frame and the post you plan to use.
Good picks for this: Kryptonite Keeper 712 Bike Chain Lock, Sportneer 5 Digit Combination Bike Chain Lock
Alarm Features
An alarm can draw attention to a tampering attempt, which is useful in busy areas. Check battery type and replacement schedule, and test the alarm after installing new batteries.
Good picks for this: URBAN UR6 Hi-Tech Motorcycle Disc Lock, Alarm Disc Lock Motorcycle Disc Brake Lock
Weather Resistance and Durability
Rain, road salt and humidity can corrode steel over time. Look for weather-resistant or waterproof construction, and wipe down locks after wet rides. Keep the mechanism lubricated according to the manufacturer’s instructions.
Good picks for this: Heavy Duty Anti-Theft Bicycle Chain Lock, 2.72 Ft, Kryptonite Keeper 712 Bike Chain Lock
Locking Method: Keys or Combination
Keys offer quick, familiar operation but can be lost. Combinations remove the key risk but take longer to dial. Choose based on how often you park and whether you share the lock with others.
Good picks for this: Sportneer 5 Digit Combination Bike Chain Lock, Heavy Duty Anti-Theft Bicycle Chain Lock, 2.72 Ft
Portability and Carry
Weight and bulk affect whether you will actually carry the lock. A lighter lock is easier to bring every time, which matters more than a marginal security gain you never use. Pouches and reminder cables help keep the lock with you.
Good picks for this: Alarm Disc Lock Motorcycle Disc Brake Lock, Sportneer Bike Lock U-Lock
FAQ
What is the best motor bike lock for everyday use?
For most riders, a 4-foot chain lock with hardened links offers a good balance of reach and protection. Pair it with a disc lock if you want an extra layer.
Is a disc lock enough on its own?
A disc lock stops the wheel from turning, which deters casual theft, but it can be removed by a determined thief. Use it with a chain anchored to a fixed object for better protection.
Can I use a bicycle lock on a motorcycle?
Many bicycle locks fit motorcycles, but check the shackle size, chain length and whether the lock fits your frame and the anchor point you plan to use.
How should I maintain a motor bike lock?
Wipe off dirt and moisture after wet rides, keep the keyhole lubricated with a product recommended by the manufacturer, and inspect chains for rust or damage regularly.
Are combination locks as secure as keyed locks?
Security depends mainly on the lock’s construction and link or shackle thickness. Combination locks are convenient, but choose a model with thick links and avoid easily guessed codes.
Do alarm locks need batteries?
Yes, most alarm disc locks run on small batteries. Check the battery type listed by the manufacturer, replace it on schedule, and test the alarm after each change.
How do I choose between a U-lock and a chain?
U-locks are rigid and compact, while chains are flexible and reach more objects. If you need to lock to a wide post or a larger frame, a chain usually offers more options.
Conclusion
The best motor bike lock depends on how you ride and park. For overall chain security, the Kryptonite Keeper 712 is a solid starting point. Riders with larger frames may prefer the longer Kryptonite Keeper 785 design. Those who park on busy streets might add the URBAN UR6 alarm disc lock as a deterrent layer. Budget-minded riders can consider the Sportneer U-Lock, and keyless riders may prefer the Sportneer combination chain. Match the lock type, length and locking method to your parking situation, and combine two locks when you can.
Sources
- Motorcycle safety resources and rider guidance on securing and maintaining motorcycles (nhtsa.gov)
- Consumer safety information on product recalls and safe use of consumer products (cpsc.gov)
- Standards and measurement resources relevant to materials and security performance (nist.gov)
Related reading
- Top 6 Best Electric Bike Locks for E-Bikes and Commuters (2026)
- Motor Bike Wheel Lock: How to Choose and Use One Safely
- Bike Disc Lock with Alarm: 7 Best Picks for Commuters and Riders (2026)
About Nora Fairbanks
Nora puts together our bike accessories guides, digging through specifications, manufacturer details and owner reviews so you don't have to.
