









๐ Lock it loud, lock it proud โ your rideโs new best bodyguard!
The YOHOOLYO Alarm Disc Lock is a heavy-duty, waterproof motorcycle security device featuring a 7mm hardened steel pin and a piercing 110 dB alarm. Designed with a smart motion sensor and 360ยฐ locking flexibility, it fits motorcycles, scooters, and bikes with disc brakes. Complete with a 5ft reminder cable, dual keys, Allen wrench, and carry pouch, it offers robust, weather-resistant protection that keeps your vehicle safe and your mind at ease.














| ASIN | B01M4MG0YT |
| Best Sellers Rank | #2,340 in Automotive ( See Top 100 in Automotive ) #1 in Powersports Alarms & Anti-Theft |
| Brand | YOHOOLYO |
| Customer Reviews | 4.5 4.5 out of 5 stars (10,639) |
| Date First Available | September 5, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12.3 ounces |
| Item model number | LK603 |
| Manufacturer | YOHOOLYO |
| Manufacturer Part Number | 43249-125169 |
| Product Dimensions | 3 x 2.8 x 1 inches |
| Special Features | Work for Disc Brake vehicle only |
A**N
Would buy again but donโt think Iโll have to for a long time!
Very loud, works great, easy to use, and very sensitive which I appreciate as people often try to take my motorcycle cover and this is sensitive enough that it goes off if youโre rough with the cover as I thread the reminder cable in it. Have had it for 6 months and dropped it a few times and it works great. Itโs also very discrete and looks well made.
L**H
Amazing quality, great for bike safety
Works exactly like intended, and I've already caught and stopped 2 people trying to run off with my new ebike
R**.
GREAT $20 ANTI THEFT DETERRENT, amazing value!!
Loud enough. Very heavy duty. The whole package- the lock, orange steel braided cable, pouch, EXTRA SET OF BATTERIES, packaging and the simple instruction sheet = THE BEST DEAL AT ONLY $20 SHIPPED! I LOVE AMAZON PRIME! I just wish I would have bought into some Amazon stocks shares when Amazon first started up!
N**E
Great Value Disc Lock with Loud Alarm and Useful Reminder Cable
This is a great-priced disc lock for motorcycles or scooters. Itโs easy to use, locks securely, and comes with a loud 110 dB alarm that goes off if the bike is moved โ a great deterrent. The set also includes an extra battery and a bright reminder cable (like a plastic rope), so you donโt forget the lock is on your disc. The key is simple and works smoothly, though it might not be the most high-security key design. Itโs possible it could be easier to duplicate than more advanced locks, so I wouldnโt rely on it as your only layer of protection. That said, for the price, itโs an excellent secondary lock to have. Compact, waterproof, and comes with a carry pouch โ definitely worth it for peace of mind.
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.
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.
J**R
Great Product !
This product works very well ...
C**A
A year and a half later and still rocks
After a year and a half of use, after many drops on solid concrete, after all the rainy and cold and hot days outside and in the garage, I still havenโt had to replace the original batteries. The alarm chime is loud and works perfectly every time but isnโt so sensitive that it activates when the wind is too strong. Iโve forgotten to remove the lock before attempting to ride away and it stopped me dead in my tracks, and has been just as reliable and functional since. No problems whatsoever with the barrel-type lock, even though I use this about 4-5 times a week. Iโd absolutely buy this again but I donโt think Iโll need to for at least another few years.
T**A
el sonido dice 120 y viene siendo de 110 y el color no es como la foto
L**G
It costs a bit extra but itโs damn good.
L**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 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.
F**E
Velo electrique
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