★★★★★ Rated 4.9 by verified customers
Velock Alarm Disc Lock
A thief touches your bike, an ultra 120-decibel alarm blasts across the street, instantly scaring them off—Protect your bike, your ride, and your peace of mind
🏆 2026’S BEST BIKE LOCK INNOVATION
- 120dB Alarm Triggers On Move To Scare Thieves Away
- Universal Lock Fits Bikes, Motorbikes And Scooters
- Arm and Disarm Your Lock In Just 5 Seconds
- 4–6 Months Standby Time On A Single Full Charge
- Tough Aluminum Build, Shrugs Off Knocks & Prying
- Waterproof & Dustproof, Reliable Year-Round Outdoor Parking
Product Description
Fits Most Motorcycles and Bikes:
Disc brake lock is suitable for most motorcycles and bikes with disc brakes, where the rotor is less than 7mm(1/4") thick with holes. Whether you have a motorcycle, moped, scooter, mountain bike, or e-bike, our lock will keep it safe.
Rechargeable:
Alarm disc brake lock can fast charging, approximately 70Mins to fully charge. Once fully charged, it can be used on standby for 5-6 months, no need to require frequent battery replacement. The universal Type-C charging port is compatible with mobile phone chargers, power banks, and more for quick charging, making it easy for you to maintain it for a long time.
Aluminum Alloy Construction:
Durable Aluminum Alloy Construction Made from strong Aluminum Alloy, this brake rotor lock resists corrosion and impact. Its robust build ensures long-term protection for your motorcycle in harsh outdoor conditions.
Waterproof Design:
Waterproof Design for All-Weather Use Engineered with a waterproof structure, this lock performs reliably in rain, snow, or high humidity. Ideal for year-round use, it protects your bike regardless of weather conditions.
How to use
1) Loop one end of the reminder cable around the disc lock.
2) Align the locking pin with a hole in the brake disc.
3) Press down on the lock head; a beep indicates it is locked.
4) Loop the other end of the reminder cable around the handlebar to remind you that the bike is locked and must be unlocked before riding.
What is included
🔒 1 X Velocko Alarm Disc Lock
🔑 2 x keys
💫1 x USB Cable
📄 1 x Manual
🧬1 x Clamp
🔗1 x 1.2 Reminder Rope
💼1 x Storage Bag
⚠️ Due to security concerns, we do not keep spare keys. Please make sure the provided keys are safe
Care & Maintenance
To keep your lock in optimal condition, wipe the lock body with a soft, dry cloth after use to remove dust and dirt. When not in use, store it in the pouch attached to the handle or the mount on the rear seat. Charge the lock for 70 minutes every three months and apply a few drops of lock lubricant into the keyhole to ensure the locking mechanism operates smoothly. With simple routine maintenance, your lock will continue to provide reliable protection for a long time.
Quick install
Install in seconds.
Press the lock button; three beeps will sound, and the alarm will activate. Unlock with the key to disarm the alarm.
- Insert one end of the reminder cable into the lock.
- Attach it to the brake disc.
- Align the holes and press down on the lock head.
- Pull the reminder cable out to a visible position.
Compatible with most motorcycles
Scooters
Bicycles
Electric motorcycles
OUTDATED LOCKS CAN’T COMPETE
120dB ultra-high Alarm Sound
USB-C rechargeable
Strong steel shell
Compact and easy to store
Resistant to cutting
WIth LED Light support Ride Safety
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customers Recommend
4.9 / 5 (200+)
Verified
Dose exactly what its supposed to just got it but tried it out I'm happy with it alarm is loud and super annoying as it should be,motion sensor isn't super sensitive which was a concern if bike is bumped or something one small warning beep but you start tampering with it well cover your ears
Trevor ogden
Velcoko Alarm Disc Lock
One feature I strongly recommend using is the included Yellow-green reminder cable. Attach it between the lock and your handlebar every time you use the lock. It's very easy to forget a disc lock is installed, and that reminder cable can save you from accidentally trying to ride away and damaging your brake rotor.
Dave C.
Velocko Alarm Disc Lock
Purchased this alarm lock for my ebike so I can stash it in the woods while I go rock hounding. It gives me a feeling of security to be able hear if anyone is tampering with it. I run the shock cable through the vent hole in my helmet and leave it with the bike. Well thought out product. Very pleased. 5 stars.
Weekender
Velocko Alarm Disc Lock
Extremely loud! Reliable! I clipped it on my moped because theives stole it last time (thank God for built in GPS tracking I was able to get it back) and I feel more at ease 🙏🏼 Tested it out and man does it ever hurt your ears. Piercing sound. Should wake up the whole neighborhood. Will update how long the battery lasts. So far so good.
Erin Rose B
Velocko Alarm Disc Lock
This lock fits Harley Davidson front disc’s perfectly. (Pictured is 2023 road glide)The audio alarm functionality is very sensitive, Seems well built and a nice deterrent. High value for the cost. Bike is insured so ultimately if it’s gonna get stolen by a sophisticated thief… so be it. This is just a perfect deterrent for not much money.
Steve H.
Velocko Alarm Disc Lock
I've actually been able to lock up more than one bike using the same lock. Because I can run the cable through another fork. Lock it down. The alarm appears to be incredibly loud . It would be very difficult to break off. Because there's really no way to get a pair of bolt cutters in to clip the mechanism. What the alarm is it great detergent. For the price you can't beat this system I think
Cora P.
Velocko Alarm Disc Lock
Frequently Asked Questions
Answered by Nick D.
Our Product Developer
Will this fit my motorbike or scooter?
Yes, if your brake disc has holes (nearly all do), you’re good to go. It fits virtually every motorbike and scooter, from 125cc commuter bikes all the way up to high-performance superbikes. The locking pin is sized to fit the standard holes found on almost any brake disc.
Still unsure? Send us your vehicle make and model, and our team will confirm compatibility for you. Email:support@velocko.com
How long will the battery last?
Charge it once using the included USB-C cable (full charge takes roughly 70 minutes). A single full charge delivers 4–6 months of use. No need to source and replace disposable batteries. A low-battery indicator alerts you well before recharging is needed. Just plug it in overnight, and you’re set.
Will the alarm trigger accidentally?
No. This Disc Lock uses an intelligent shock sensor. Minor vibrations first trigger 3 short warning beeps. Passing trucks or small bumps will not activate the full loud siren. Only real tampering will trigger the full 120dB alarm for 15 seconds. It smartly tells the difference between wind vibration and thief tampering.
Can thieves break through this disc lock？
This Disc Lock features a hardened alloy casing built to withstand hammer blows, pry bars and brute-force attacks. Its biggest deterrent is the loud alarm: as soon as anyone tampers with your bike, a powerful 120dB siren sounds, alerting everyone nearby.
No security product is 100% unbreakable, Thieves look for quiet, easy targets. A disc lock that cannot be defeated silently and triggers a loud alarm at the first attempt will make thieves move on to another bike immediately. It is your primary, loudest line of bike security defence.
How quickly can I install and remove it?
Set it in place in under 10 seconds, unlock and remove it in one quick motion. No complicated setup, and no instruction manual required. Simply clamp it onto your brake disc, press down to lock, and the alarm will activate instantly. Just a quick turn of the key to unlock and you’re ready to ride. Simple enough to use every time you park your bike, yet sturdy and strong to deter thieves.
What happens if I lose my keys?
Every order includes 2 keys. Keep one on your key ring and store the spare safely at home. If you lose both keys, you will need to contact a professional locksmith, same as most high-security locking devices. Most riders take great care of their keys to protect their valuable motorbike.
What if it does not fit my bike?
No worries. Your purchase is protected by our 30-Day Money-Back Guarantee.
Try Anti-Locket on your own vehicle and make sure it works for your setup. If it’s not the right fit or you’re not completely satisfied, simply contact our support team within 90 days and we’ll help arrange your return and refund.
We want you to feel confident before making Anti-Locket part of your vehicle security routine.
REVIEWS FROM VERIFIED CUSTOMERS
T
Dose exactly what its supposed to just got it but tried it out I'm happy with it alarm is loud and super annoying as it should be,motion sensor isn't super sensitive which was a concern if bike is bumped or something one small warning beep but you start tampering with it well cover your ears
W
Purchased this alarm lock for my ebike so I can stash it in the woods while I go rock hounding. It gives me a feeling of security to be able hear if anyone is tampering with it. I run the shock cable through the vent hole in my helmet and leave it with the bike. Well thought out product. Very pleased. 5 stars.
D
One feature I strongly recommend using is the included Yellow-green reminder cable. Attach it between the lock and your handlebar every time you use the lock. It's very easy to forget a disc lock is installed, and that reminder cable can save you from accidentally trying to ride away and damaging your brake rotor.
E
Extremely loud! Reliable! I clipped it on my moped because theives stole it last time (thank God for built in GPS tracking I was able to get it back) and I feel more at ease 🙏🏼 Tested it out and man does it ever hurt your ears. Piercing sound. Should wake up the whole neighborhood. Will update how long the battery lasts. So far so good.
S
This lock fits Harley Davidson front disc’s perfectly. (Pictured is 2023 road glide)The audio alarm functionality is very sensitive, Seems well built and a nice deterrent. High value for the cost. Bike is insured so ultimately if it’s gonna get stolen by a sophisticated thief… so be it. This is just a perfect deterrent for not much money.
C
I've actually been able to lock up more than one bike using the same lock. Because I can run the cable through another fork. Lock it down. The alarm appears to be incredibly loud . It would be very difficult to break off. Because there's really no way to get a pair of bolt cutters in to clip the mechanism. What the alarm is it great detergent. For the price you can't beat this system I think
J
I was really surprised by this product. The USB-C rechargeable battery, the loud alarm, and the reminder cord, all make for a fantastic package.
i
Loud siren. Sturdy. Very long battery life!
R
Exactly as advertised. Awesome lock.
B
Good build quality and loud alarm