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๐ Lock it. Alarm it. Own your rideโs safety like a pro.
The YOHOOLYO Alarm Disc Lock is a heavy-duty, metal motorcycle lock featuring a 110 dB alarm and a 7mm pin adjustable at 360ยฐ. Designed for motorcycles, scooters, and bicycles, it offers waterproof, rust-resistant protection with a sensitive motion sensor alarm. Equipped with dual battery sets and a 5ft reminder cable, it ensures long-lasting, reliable anti-theft security, all packed with essential accessories for professional-grade peace of mind.











| ASIN | B01M4MG0YT |
| Audible Noise | 110 Decibels |
| Best Sellers Rank | #2,349 in Automotive ( See Top 100 in Automotive ) #1 in Powersports Alarms & Anti-Theft |
| Brand | YOHOOLYO |
| Built-In Media | a motorcycle disc lock, two keys, an Allen key, 5ft reminder cable, and carry pouch |
| Color | Black |
| Compatible Devices | motorcycles, bicycles, scooters |
| Control Method | Touch |
| Customer Reviews | 4.5 out of 5 stars 10,928 Reviews |
| Item Weight | 0.77 Pounds |
| Manufacturer | YOHOOLYO |
| Maximum Range | 5 Feet |
| Mfr Part Number | 43249-125169 |
| Model Number | LK603 |
| Noise Level | 110 Decibels |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Size | portable |
| UPC | 611864444543 |
| Unit Count | 1 Count |
Y**B
Excelent product
Excellent lock, very secure and easy to use Review: This lock exceeded my expectations. It is sturdy, easy to install, and the alarm is very loud, which is perfect for deterring any theft attempts. The materials feel high-quality and the mechanism works smoothly. I've been using it daily and have had no issues so far. Great value for the price. Highly recommended for keeping your motorcycle safe!
B**I
Effectฤฑve!!!
This is not a lock you cannot cut or break, but it will wake up the whole neighborhood for the time it takes to cut this. It is loud, but it also has a kind of wavelength that drills into your brain. Hard to bear the alarm. It is also very sensitive. It is attached to the front wheel, but it will warn you even if you touch the back wheel! I feel my bike is well protected with this, plus other measures that I already had in place.
S**N
Simple and Effective
I've owned and used this lock for an entire riding season. Its batteries have lasted that long, and have shown no indication of running out. It's small but heavy, and my god is it sensitive. Maybe that's the only thing I dislike about it is how oversensitive it can be- if I know it'll rain, I'll make sure to put it on the back wheel instead of the front wheel, because if the rain hits it, it will go off. It's been very sturdy, and I find I don't use the cable it comes with. It's so sensitive that if you even start opening up the tail bag casually instead of carefully, it'll beep at you. I live in an area where there are people around all the time, so I use it as more of a 'pay attention to me, I'm getting stolen!!' alarm than an actual theft deterrent. When I sleep, I leave my window cracked open. If anyone touches the bike, even the neighbor's cat, it'll chirp and I'll know to listen to see if it goes into full scream-mode. The alarm itself is pretty loud and piercing. It does hurt my ears up close, and it's *very* noticeable even several hundred feet away. (Definitely wakes me up at night when it rains and I forget to move it to the sheltered brake rotor on the back wheel!) Pros: -small, easy to store -very durable -loud -battery lasts long -water and weather resistant/proof -direction of unlocking twist (clockwise) means that if you mount it right, it's easier to unlock without going off Cons: -Can be oversensitive -Goes off in the rain -lock mechanism is beginning to get a bit stiff after one year of weather-induced neglect Would I buy it again? Oh yeah, it's perfect for my use-case scenario.
A**K
Excellent Low Cost Deterrent and Physical Security.
Nice Lock, has good weight and doesn't feel cheap. The alarm chirp is loud (I'm able to hear it in my driveway from the rear of my home) and when in close proximity can be painful if you aren't prepared. Comes with batteries already in the device and a small set of spares. Make sure to use the cable as it is extremely easy to forget its on. Definitely a wise low cost addition to protect your ride, Plus its got a variety of colors to match your bike if that's your thing.
U**0
Good functional motion sensing lock
I like this bike lock/alarm so far. Comes with extra batteries and a plastic coiled reminder cord. I use it to secure my foldable ebike. Alarm is plenty loud enough for me. I don't think it's too sensitive either. I accidentally set it off one time when I was removing my ebike from a bike rack and forgot to remove the alarm. I use it with sturdier bike lock. I don't park my ebike outside overnight and when I'm out and about on my ebike I don't usually leave it parked in public spaces for very long. I do like the extra piece of mind that comes with using it. Let's face it, there's no way to make a bike completely secure in a public place. The best you can do is make thieves consider easier targets to steal if they come across your alarmed and locked bike. I picked a red color because I wanted the alarm to be noticed and the orange reminder cord also helps. It comes with bag with a Velcro strap so you can attach the alarm to your bike frame when not in use
M**Z
Excellent quality.
After testing various safety systems, the YOHOOLYO disc lock stands out as one of the best value for money options to protect your motorcycle or bike. It is not just a physical block, it is a very efficient active deterrent.
J**N
Works for my 2003 CBR600RR, but it did not fit the front tire on my 2023 Ninja 400.
Works for my 2003 CBR600RR, but it did not fit the front tire on my 2023 Ninja 400. Make sure that you check the pinhole size of the rotors that you have before you buy. For my 2023 Ninja 400, I had to get a smaller 5mm lock for the front. This 7mm one would only fit the back wheel on my Ninja. This can fit on both wheels of my CBR however. Alarm is loud and not overly sensitive, which is good. However, if its already agitated then it will get more sensitive and then make the alarm sound, which is quite loud, louder than the video depicts. Overall good, but I haven't tested the lock strength yet and I don't plan to. Don't rely on this to fully protect your bike though. If a thief really wants your bike, they can still lift it. This just prevents them from rolling it away. I still think that a solid hit with a sledgehammer could still break this lock.
R**P
Double check the received product
Received the used product with scuffs on it didnโt send it back because donโt want to wait another week for it, first battery died in less than a month now (20 days). Other than that good product to have it for peace of mind. Currently using it on Yamaha R7 front disk if that helps.
T**A
.
el sonido dice 120 y viene siendo de 110 y el color no es como la foto
L**G
Better than a local substandard lock.
It costs a bit extra but itโs damn good.
L**E
Best low price security system
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 ๐๐ผ 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.
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ๅคๆฎตๅฎใใ ๅใไปใใ็ฐกๆใไฝฟใใใใใงใ
E**B
it works!!
Easy and cheap and loud! Gives me a sense of security!
Trustpilot
4 days ago
2 weeks ago