12 Best Loud Bike Locks With Alarms for 2026 (Thieves Hate These)
You want loud, and you want tough—these 130 dB bike locks deliver, with alarms as jarring as a jet blast to scare off thieves instantly. From remote-enabled Mengshen models to Wsdcam’s adjustable sensors and YOHOOLYO’s disc-lock strength, each one fights theft with noise and durability.
Weatherproof, battery-smart, and built for bikes, e-bikes, or scooters, they don’t just warn—they stop. You’ll see why some are nearly impossible to ignore.
Quick Overview
- Loud alarms (110–130 dB) deter thieves effectively, with many models offering adjustable sensitivity and multiple volume levels.
- Remote arming/disarming up to 40 meters enhances convenience and security for quick access.
- IP55 or higher weather resistance ensures reliable performance in rain, snow, and extreme temperatures.
- Dual protection via alarm and robust locking mechanisms like hardened steel chains or U-locks thwarts cutting and tampering.
- Battery indicators, long standby times, and USB-C charging options help maintain consistent alarm functionality.
| Mengshen Bike Lock with Remote & Alarm |  | Best Overall | Alarm Volume: 115dB | Waterproof Rating: IP55 | Power Source: 3 AAA batteries | VIEW LATEST PRICE | Read Our Analysis |
| Mengshen Bike Alarm Lock with Remote |  | Best Value | Alarm Volume: 115dB | Waterproof Rating: IP55 | Power Source: 3 AAA batteries | VIEW LATEST PRICE | Read Our Analysis |
| YOHOOLYO Alarm Disc Lock for Motorcycle |  | Most Durable Pick | Alarm Volume: 110dB | Waterproof Rating: Water-resistant (no IP rating specified) | Power Source: 6 internal + 6 backup batteries | VIEW LATEST PRICE | Read Our Analysis |
| Wsdcam 113dB Wireless Bike Alarm |  | Best Sensitivity | Alarm Volume: 113dB | Waterproof Rating: IP55 | Power Source: Battery saving tech (battery type not specified) | VIEW LATEST PRICE | Read Our Analysis |
| Heavy Duty Anti-Theft Alarm U-Lock for E-Bikes |  | Heavy-Duty Choice | Alarm Volume: High-pitched (no dB specified) | Waterproof Rating: Weatherproof | Power Source: Not specified | VIEW LATEST PRICE | Read Our Analysis |
| Electric Scooter Lock with Alarm & Bag |  | Best With Storage | Alarm Volume: 7 adjustable volumes (max ~110dB) | Waterproof Rating: Waterproof | Power Source: Key-operated (batteries in alarm? not specified clearly) | VIEW LATEST PRICE | Read Our Analysis |
| BANGTING 4Ft Bike Chain Lock with Alarm |  | Longest Chain | Alarm Volume: 110dB | Waterproof Rating: IP65 | Power Source: 3 AAA batteries | VIEW LATEST PRICE | Read Our Analysis |
| WSDCAM Bike Alarm with Remote (2-Pack) |  | 2-Pack Value | Alarm Volume: 113dB | Waterproof Rating: IP55 | Power Source: Not specified | VIEW LATEST PRICE | Read Our Analysis |
| BANGTING 4FT Smart Alarm Bike Lock | | Smart Design | Alarm Volume: 110dB | Waterproof Rating: IP65 | Power Source: USB-C rechargeable | VIEW LATEST PRICE | Read Our Analysis |
| Bike Chain Lock with Alarm & USB-C |  | Rechargeable Pick | Alarm Volume: 110dB | Waterproof Rating: Waterproof | Power Source: USB-C rechargeable (Lithium polymer) | VIEW LATEST PRICE | Read Our Analysis |
| Bike Chain Lock with 130dB Alarm |  | Loudest Alarm | Alarm Volume: 130dB | Waterproof Rating: IP66 | Power Source: Not specified | VIEW LATEST PRICE | Read Our Analysis |
| Max 110dB Rechargeable Bike Alarm with Remote |  | Longest Range | Alarm Volume: 110dB | Waterproof Rating: IP65 | Power Source: USB rechargeable (4.2V 700mAh lithium) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Mengshen Bike Lock with Remote & Alarm
Who wouldn’t want a bike lock that screams 115dB the moment someone tampers with it? You release the Mengshen with a remote or 4-digit code—no keys needed.
The remote works up to 40 meters, and with 256 code combos, you’ve got solid flexibility. It blares if someone cuts, moves, or vibrates the lock.
Plus, it’s built to last: IP55 waterproof, resists rust, and handles temps from -10°C to 60°C. You’ll never miss a low battery—LED flashes and an alert sounds when power’s low.
Just swap the 3 AAA batteries or refresh the remote when needed. You can secure bikes, scooters, gates, or sports gear.
It’s loud, tough, and ready wherever you need it.- Alarm Volume:115dB
- Waterproof Rating:IP55
- Power Source:3 AAA batteries
- Remote Control:Yes
- Locking Mechanism:Remote or 4-digit password
- Application Range:Bike, scooter, gate, stroller, etc.
- Additional Feature:4-digit password option
- Additional Feature:LED low battery indicator
- Additional Feature:Operates in extreme temperatures
Mengshen Bike Alarm Lock with Remote
If you want a no-key, easy-to-use lock that fights back when tampered with, the Mengshen Bike Alarm Lock with Remote is your go-to choice. You unlock it with a 4-digit password or remote—no keys needed.
The remote works up to 40 meters away, and you’ll hear a “Du” sound when locking or unlocking. It screams at 115 dB if someone shakes, cuts, or tries to tamper with it.
With IP55 waterproofing and a -10°C to 60°C range, it handles all weather. Its 31-inch cable fits bikes, scooters, gates, and more.
Just pop in 3 AAA batteries, watch for the flashing low-battery LED, and protect your gear with smart, loud, reliable security.- Alarm Volume:115dB
- Waterproof Rating:IP55
- Power Source:3 AAA batteries
- Remote Control:Yes
- Locking Mechanism:Remote or 4-digit password
- Application Range:Bike, scooter, gate, stroller, etc.
- Additional Feature:31-inch cable length
- Additional Feature:Audio cue on lock action
- Additional Feature:Dual alarm and locking function
YOHOOLYO Alarm Disc Lock for Motorcycle
Need serious protection for your motorcycle, scooter, or dirt bike? The YOHOOLYO Alarm Disc Lock’s got your back.
With a piercing 110 dB alarm and motion sensor that triggers after a 5-second delay, thieves won’t stand a chance. Its 7 mm locking pin adjusts 360 degrees, securing in any position.
Built tough with rust-resistant, waterproof metal, it handles crashes and harsh weather without failing. You get double security with alarm + disc lock, plus 2 keys, an Allen wrench, and a carry pouch.
Six internal batteries and six backups keep it running long-term. Everything comes neatly boxed—ready to use or gift.
You’ll sleep easier knowing your ride’s locked down tight.- Alarm Volume:110dB
- Waterproof Rating:Water-resistant (no IP rating specified)
- Power Source:6 internal + 6 backup batteries
- Remote Control:No
- Locking Mechanism:Keyed lock (2 keys included)
- Application Range:Motorcycle, bicycle, scooter, dirt bike
- Additional Feature:360-degree adjustable pin
- Additional Feature:Includes 6 backup batteries
- Additional Feature:Comes with carry pouch
Wsdcam 113dB Wireless Bike Alarm
Looking for a theft deterrent that packs a punch without the hassle of cables or complicated setup? The Wsdcam 113dB Wireless Bike Alarm’s got you covered.
It mounts easily and uses smart vibration sensing to detect tampering. You can adjust sensitivity across 7 levels and choose one of 3 volume settings to suit your needs.
With a loud 113dB alarm, it scares off thieves fast. The wireless remote works up to 66 ft away and helps you locate your bike with a 3-bell search signal.
IP55 waterproofing and battery-saving tech mean it lasts longer in tough conditions. It’s reliable, tough, and exceeds industry standards—perfect for bikes, e-bikes, scooters, and more.- Alarm Volume:113dB
- Waterproof Rating:IP55
- Power Source:Battery saving tech (battery type not specified)
- Remote Control:Yes
- Locking Mechanism:Wireless alarm only (no integrated lock)
- Application Range:Bike, e-bike, motorcycle, scooter, car, luggage
- Additional Feature:7 sensitivity levels
- Additional Feature:3 volume levels
- Additional Feature:Vehicle search function
Heavy Duty Anti-Theft Alarm U-Lock for E-Bikes
Who wouldn’t want a lock that fights back when someone tries to steal their e-bike? This Heavy Duty Anti-Theft Alarm U-Lock does just that.
With 16mm hardened stainless steel, it resists bolt cutters, leverage attacks, and hand tools. The motion-activated, high-pitched alarm blares loudly to scare off thieves and grab attention.
Weatherproof and built to last, it fits wide tires up to 20×4—perfect for e-bikes, scooters, or motorcycles. You’ll get peace of mind when parking in public, knowing your ride’s protected.
Plus, three keys mean backup access is always handy. It’s tough, loud, and exactly what deters criminals on the move.- Alarm Volume:High-pitched (no dB specified)
- Waterproof Rating:Weatherproof
- Power Source:Not specified
- Remote Control:No
- Locking Mechanism:Keyed U-lock (3 keys)
- Application Range:E-bike, scooter, motorcycle
- Additional Feature:16mm stainless steel body
- Additional Feature:Resists bolt cutters
- Additional Feature:Fits wide tire wheels
Electric Scooter Lock with Alarm & Bag
This pick stands out for e-scooter riders who want all-in-one protection that fights theft and handles the elements. You get a heavy-duty alloy steel chain lock that resists cutting and sawing, plus a motion-sensitive alarm with 7 volume levels to scare off thieves.
Arm or disarm it quickly using the remote—no fumbling with keys. The 37-inch (94 cm) thick chain wraps easily around poles or racks, securing scooters, bikes, or strollers.
Rain? No problem.
The included silicone bag keeps your lock dry and scratch-free, with a mesh pocket for keys or your phone. Everything fits neatly inside: lock, 3 keys, remote, and bag—so you stay protected, organized, and ready.- Alarm Volume:7 adjustable volumes (max ~110dB)
- Waterproof Rating:Waterproof
- Power Source:Key-operated (batteries in alarm? not specified clearly)
- Remote Control:Yes
- Locking Mechanism:Keyed chain lock (3 keys)
- Application Range:E-scooter, bike, motorcycle, stroller
- Additional Feature:Includes waterproof storage bag
- Additional Feature:Inner mesh pocket
- Additional Feature:Full alloy steel chain
BANGTING 4Ft Bike Chain Lock with Alarm
If you need a lock that stands up to saws, resists rust, and screams at would-be thieves with a 110dB alarm, the BANGTING 4Ft Bike Chain Lock is one of the top choices on the list for urban riders and anyone locking up gear outdoors. You’ll trust its 8mm manganese steel chain and zinc alloy core to block cutters and drills.
Wrap it around bikes, e-bikes, gates, or ladders—the 4ft length lets you secure two items fast. Rain or shine, the IP65 alarm and dustproof cap hold strong.
You get remotes, keys, a charging cable, and a storage bag—all you need for simple, reliable protection that lasts.- Alarm Volume:110dB
- Waterproof Rating:IP65
- Power Source:3 AAA batteries
- Remote Control:Yes
- Locking Mechanism:Keyed chain lock (3 keys)
- Application Range:Bike, e-bike, gate, ladder, lawnmower
- Additional Feature:Polypropylene scratch-resistant cover
- Additional Feature:USB-C charging support
- Additional Feature:Dustproof lock hole cap
WSDCAM Bike Alarm with Remote (2-Pack)
Need a versatile, ear-piercing alarm that guards more than just your bike? The WSDCAM Bike Alarm with Remote (2-Pack) hits 113dB—loud enough to scare off thieves.
You get 7 sensitivity levels and 3 volume settings, so you can customize it for your bike, e-bike, scooter, or even luggage. With a wireless remote that reaches 66 feet, you can arm, disarm, or locate your gear fast.
It’s IP55 waterproof, so rain or shine, it’s got your back. Mount it in seconds using the included strap or adhesive.
Use it on doors, trailers, or cars—this alarm’s got you covered anywhere.- Alarm Volume:113dB
- Waterproof Rating:IP55
- Power Source:Not specified
- Remote Control:Yes
- Locking Mechanism:Wireless alarm only (no integrated lock)
- Application Range:Bike, motorcycle, scooter, car, trailer, luggage
- Additional Feature:Pack of two alarms
- Additional Feature:Mounts with strap/sticker
- Additional Feature:Three bell options
BANGTING 4FT Smart Alarm Bike Lock
Who wouldn’t want a bike lock that fights back the moment a thief touches it? The BANGTING 4FT Smart Alarm Bike Lock does just that with its 110dB siren that blasts on impact or tampering.
You arm and disarm the alarm remotely, but still use a physical key to lock and unlock—keeping access secure and tamper-proof. Its 8mm manganese steel chain shrugs off bolt cutters, while the reinforced zinc alloy head resists drilling.
With IP65-rated weather protection and a scratch-free sleeve, it handles rain, dust, and daily abuse. You get two remotes, three keys, and a handy storage bag.
It’s ideal for bikes, e-bikes, scooters, or gates—versatile, loud, and tough.- Alarm Volume:110dB
- Waterproof Rating:IP65
- Power Source:USB-C rechargeable
- Remote Control:Yes
- Locking Mechanism:Key access with remote alarm
- Application Range:Bike, e-bike, scooter, motorcycle, gate
- Additional Feature:USB-C rechargeable
- Additional Feature:Reinforced zinc alloy lock
- Additional Feature:Silicone case included
Bike Chain Lock with Alarm & USB-C
You want unshakable peace of mind when leaving your bike or e-scooter in high-risk areas, and the Bike Chain Lock with Alarm & USB-C delivers just that. It packs a 110dB alarm with motion detection, three volume levels, and two sensitivity settings to scare off thieves.
The heavy-duty alloy steel chain has a reinforced fabric sleeve for flexibility and strength, plus a silicone-covered alarm to resist impacts. You’ll get up to 60 days of standby time on a single charge via USB-C.
Remote control lets you lock and unlock from a distance. It’s waterproof, rugged, and works on bikes, e-scooters, and gates.
Comes with two remotes, three keys, and a storage bag.- Alarm Volume:110dB
- Waterproof Rating:Waterproof
- Power Source:USB-C rechargeable (Lithium polymer)
- Remote Control:Yes
- Locking Mechanism:Key access with remote alarm
- Application Range:Bike, e-scooter, motorcycle, gate
- Additional Feature:60-day standby battery
- Additional Feature:Rechargeable lithium polymer
- Additional Feature:Model TS-BJQ03 identifier
Bike Chain Lock with 130dB Alarm
Looking for a bike lock that doesn’t just sit quietly when trouble strikes? Meet the 130dB bike chain lock—its built-in vibration sensor triggers a deafening alarm at the first sign of tampering.
You can switch between alarm and silent mode, but when on, thieves won’t stick around. Made with an 8mm heat-hardened steel chain and a thick 0.47-inch solid steel padlock, it resists cutting and rust.
IP66-rated, it handles rain no problem. Lock it to your frame or wheel hub for best alarm response.
Three unique keys and a tinfoil-resistant cylinder keep it secure. At 519g, it’s tough but portable.- Alarm Volume:130dB
- Waterproof Rating:IP66
- Power Source:Not specified
- Remote Control:No
- Locking Mechanism:Keyed padlock (3 keys)
- Application Range:Bike, e-bike, motorcycle, scooter
- Additional Feature:130dB highest alarm volume
- Additional Feature:Patent lock cylinder design
- Additional Feature:8mm heat-hardened chain
Max 110dB Rechargeable Bike Alarm with Remote
Need maximum deterrence with smart customization? The Max 110dB Rechargeable Bike Alarm with Remote gives you loud, targeted protection that you control.
Adjust volume and sensitivity to match your environment—quiet streets or busy lots. Its 110dB alarm screams for 30 seconds when triggered, scaring off thieves.
You’ll love the 100m remote range, locator tones, and three alert sounds. Mount it anywhere using brackets, zip ties, or adhesive tape—no tools needed.
It’s weatherproof (IP65), USB-rechargeable, and lasts months per charge. Low-battery alerts keep you prepared.
Pair up to 8 remotes. It’s durable, smart, and built to guard your bike, car, or luggage—anywhere you go.- Alarm Volume:110dB
- Waterproof Rating:IP65
- Power Source:USB rechargeable (4.2V 700mAh lithium)
- Remote Control:Yes
- Locking Mechanism:Wireless alarm only (no integrated lock)
- Application Range:Bike, car, luggage, trailer, door, window
- Additional Feature:100m remote range
- Additional Feature:4.2V 700mAh lithium battery
- Additional Feature:Supports up to 8 remotes
Factors to Consider When Choosing Loud Bike Locks With Alarms
You want a loud alarm, so check the volume level—100dB or higher startles thieves fast. Make sure the lock resists rain and heat, and pick a power source that won’t leave you stranded.
Choose a locking mechanism, alarm range, and remote control that fit your daily rides.
Alarm Volume Level
How loud is loud enough? For bike lock alarms, 110 dB grabs attention, but 115 dB hits harder—ideal for stopping thieves in their tracks, even from a distance.
Most loud locks range between 110 and 115 dB, and that extra boost can make all the difference in noisy streets or quiet alleys. You’ll want a lock with multiple volume settings—like low, medium, high—so you can adapt to your surroundings and avoid unnecessary noise.
Higher volume doesn’t help if it triggers every passing breeze, so smart locks pair volume control with adjustable sensitivity. That way, you keep false alarms low while staying ready to blast when something’s off.
Always check the specs before buying—don’t assume the decibel level. Real-world performance starts with knowing exactly how loud your lock can go.
Weather Resistance Rating
Why do some bike locks fail when left outside for just a few months? Because they lack solid weather resistance.
If you’re using your lock outdoors, you need an IP rating—aim for at least IP55, but go for IP66 if you want better protection against heavy rain and dust. That extra shield keeps internal parts dry and working.
Look for rust- and corrosion-resistant materials like weatherproof metal housings; they handle humidity and rain without degrading. Your lock, remote, and battery compartment all need to survive sun exposure, downpours, and freezing temps.
Make sure it’s rated to function in extreme conditions, ideally from -10°C to +60°C. Don’t assume all alarms are built tough—check that every component stays reliable when weather gets harsh.
A loud alarm won’t help if the lock quits after three months of real-world exposure.
Power Source Type
What keeps your loud bike alarm ready when you need it most? Your lock’s power source.
Most use 3 AAA batteries or built-in rechargeable lithium cells, with USB-C charging becoming common for quick, reusable top-ups. You’ll want models with battery indicators—flashing LEDs or warning beeps—so you’re never caught off guard.
If your lock or remote starts acting sluggish, it’s likely time for fresh batteries or a charge. Remote-controlled versions rely on power in both the lock and remote, so keep spares handy.
Rechargeable models boast months of standby time, depending on alarm triggers and usage. Some even include backup batteries or clear runtime estimates.
Choose based on convenience: disposable batteries for simplicity, or rechargeable for long-term savings and eco-friendliness. Either way, stay powered and protected.
Locking Mechanism Options
Looking for a lock that fits your ride without slowing you down? Choose a locking mechanism that works as hard as you do.
Most loud bike locks with alarms let you arm or disarm via remote or keypad—no keys needed. If you hate fumbling in the dark, a remote’s quick click is perfect, while a password offers backup if you lose it.
Many models pair the alarm with motion or vibration sensors that blast 110–130 dB when tampered with, scaring off thieves. You’ll find adjustable sensitivity and volume settings—tune them to city noise or quiet neighborhoods.
Some locks even combine a U-lock or chain with the alarm system, giving you two layers of defense. Pick a dual-lock design to block cutting, prying, and leverage attacks.
The right mechanism balances speed, security, and smart response—so you stay protected without the hassle.
Remote Control Range
How far do you need to be from your bike before the remote stops working? Most loud bike locks with alarms offer a range between 40 meters and 66 feet, though newer models can reach up to 100 meters.
A longer range lets you arm or disarm the alarm without walking all the way to your bike—super handy in bad weather or sketchy areas. But watch out: greater range often means faster battery drain or interference in busy urban zones.
Some locks include a secondary short-range function for locating your bike, useful in crowded spots. Keep in mind, signal strength fades with low batteries or physical barriers like walls and cars.
To avoid surprises, test your remote regularly and replace the battery as needed. A strong, consistent signal ensures you’re always in control, even from a distance.
Durability of Materials
Why settle for a flimsy lock when thieves can cut through cheap metal in seconds? You need a loud bike lock built to last.
Choose models with hardened steel components—8 mm to 16 mm shackles resist cutting and leverage attacks. Opt for rust- and corrosion-resistant finishes, especially if you park outside.
Locks rated IP65 or IP66 handle rain and harsh weather without failing. Make sure the housing and chain are coated or sleeved to prevent rust and avoid scratching your bike frame.
Reinforced lock cores and anti-drill designs stop tampering and drilling attempts. Don’t overlook the alarm system—seal it well so moisture can’t wreck the electronics.
The best units protect batteries and circuitry in temps from -10°C to +60°C. When you pick a rugged, well-built lock, you’re not just buying security—you’re investing in peace of mind.
Ease of Installation
A robust build means nothing if you can’t install the lock quickly and securely. You need a mounting method that fits your bike, wheel, or chain and attaches without tools for fast setup.
Look for options like straps, brackets, or strong double-sided tape, especially if your frame has curves or odd angles. Check whether the kit includes mounting hardware—brackets, screws, or silicone covers—so the alarm stays put and doesn’t wobble.
A weatherproof rating (IP65 or higher) ensures it survives rain and dust once installed. Clear instructions or video guides make a big difference, helping you mount it right the first time.
Skip confusing setups—poor positioning can mess with the alarm’s performance. Choose a model that’s simple, secure, and ready to go so you’re protected the moment you ride off.
Customizable Sensitivity Settings
What good is a loud alarm if it blares at every passing breeze—or worse, stays silent when someone’s prying at your lock? You need customizable sensitivity settings to strike the right balance.
Adjust how easily your lock triggers, from slight taps to hard impacts, depending on your environment. High sensitivity catches subtle tampering but risks false alarms in busy or windy spots.
Low sensitivity cuts down on noise but could miss slow, careful attacks. Most quality locks offer seven or more levels, so you can fine-tune alerts for crowded streets or quiet neighborhoods.
Pair sensitivity control with volume adjustment to deter thieves without annoying everyone nearby. You’re not just setting a lock—you’re tailoring a defense that responds smartly to real threats while ignoring harmless bumps.
Frequently Asked Questions
Can These Bike Locks Work in Extreme Weather?
Yes, these locks handle extreme weather just fine. You’ll find they resist rust, work in freezing temps, and keep sounding the alarm even in heavy rain or blistering heat—built tough so you stay protected no matter the conditions.
Do Loud Alarms Drain the Bike’s Battery?
No, the alarms won’t touch your bike’s battery—they’re like lone wolves, running on their own power. You’ll keep riding worry-free, while the lock guards your ride with its bark, not a bite into your battery life.
Are Replacement Remotes Easy to Obtain?
Yes, you can easily get replacement remotes—most brands sell them online or offer support if lost. Just check the manufacturer’s site or contact customer service.
They’ll help you out fast, and pairing it to your lock takes minutes, not hours.
Can the Alarm Be Triggered by Animals?
Yes, animals can trigger the alarm if they bump or jostle your bike—imagine a raccoon’s curious paw setting off a siren symphony. You’ll hear it loud, but false alarms happen.
Adjust sensitivity to reduce surprises, though no lock’s immune to midnight critter chaos.
Do These Locks Comply With Local Noise Laws?
You’ll stay within local noise laws since these alarms only trigger with strong impacts, not minor bumps or animals. They’re designed to deter thieves quickly without causing public disturbances, so you won’t face fines or complaints under typical regulations.
Conclusion
You’ve got options that scream louder than trouble when thieves strike. Don’t wait until it’s too late—lock smart, scare strong.
Remember, “an ounce of prevention is worth a pound of cure.” That split-second alarm could save your ride. Choose one of these loud bike locks, and sleep easier knowing you’ve got the upper hand.
Your bike’s worth the fight, so make it hard for them and easy on yourself. Peace of mind starts now.
