Tchipie Disc Brake Lock Motorcycle Alarm with 110db Alarm Sound, Theft Prevention Security Wheel Disk Lock for 7mm Brake Rotor, Heavy Duty with 5 feet Reminder Cable for Motorcycles Bicycles

I have a little Honda rebel, nothing too special but she’s mine and I wanted to keep it that way. I live in the city and regardless of what city, theft is something that can definitely happen to anyone. There are ALOT of choices out there for disc locks but this one caught my eye because of how easy you can notice it. I appreciate that for two reasons: 1. Thieves are less likely to tamper with it 2. It’s less likely you’ll forget about it, especially with the reminder cable (given most disc locks come with a reminder cable). I’ve used this lock every day and night and it works well without a problem. The only thing that’s annoying is when it storms really bad thunder and heavy rain can set it off. That’s not necessarily from a short in the lock so much as all the vibration from elements of a storm. Being honest there are a lot of good disc locks out there, and I took a chance on this one simply because it’s a small company that makes it but it paid off.

I recently picked up a Honda Grom, and was concerned with the stories that I see on Facebook and the web concerning theft. The Grom has a wet weight of 229ish lbs and anyone that is semi-strong would be able to pick it up and throw it into the back of a truck or van. This is especially concerning to me as I live in an area where theft is common. I looked online for ways to secure my cute little pocket bike, and many people referred to this neat little device. It's a little lock that will latch onto your brake rotor, and will make it a lot more complicated to roll the little bike away. It also has a terrifyingly loud alarm and sensitive motion sensor. To be honest, I didn't know if this would be of much help, but to my surprise this little thing is quite beefy. It would take a noisy grinder or cutoff wheel to remove the damn thing, and even then I don't know if it would quite make it. Definitely a plus for that. I tried rolling the bike with this lock attached, and boy it's gnarly. If some thief actually did try rolling this while sitting on the bike they would be in for a sudden (and nasty) surprise. Price is affordable, and is a no brainer for anybody that is worried for their cute little thing. A determined thief will probably still be able to get away with the bike, but this will definitely make it harder. It also helped lower my insurance! The included strap definitely helps remind me to not move the bike until I unlatch it.

It’s a good alarm I used it on a Electric moped/ scooter (E Bike) it sits very loose on my rotor but not for nothing it’s solid. It gives a warning when it’s moved it beeps 3 times, if it’s moved again it will set off. I have to say it’s not the loudest thing in the world. If you are in a brick house or thick walled house you will not hear this alarm. It’s great for In front of stores and locking over night. No one is getting this thing off without a key. You’ll hear the alarm if you are outdoors definitely but not as much if you are watching tv with all your windows shut and in a place with thick walls. DO NOT RELY ON IT CHAIN YOUR BIKE FRAMES!! It’s very easy to just take your wheel off and avoid the alarm however the alarm will definitely set off if anyone tried that but as I said if you don’t hear it then it’s easy to get away with. If you are using it just to go into a store or leave your bike overnight or locked it will work it’s almost impossible for that rotor to move. The sound will definitely scare someone away.

I was surprised as to how easy it was to attach to front brake disc and works perfect, and loud. Also features a "fail safe" chord to attach to your handlebars as a reminder that it is one there. Great product. Would recommend to augment your existing system. There is never "too many" options to secure your motorcycle, ... besides the obvious.

I got this since my bike has to be outside since my aunt is a hoarder and no room in the garage. I got it and it slid right on the holes in my brembo rotors no issues and the pin fits different sized rotors so you'll be good. I decided to test it out at night and 110db when it's 10pm-6am is pretty loud. I also have a GPS tracker in case the thieves are decent at what they do so this wakes up the hole neighborhood and if get away I can track them since they won't be too far. The only downside is this can't really be used under a cover on a windy day/night because the cover flies around. I got around this by buying a dowco guardian all weather plus cover and it's thiccc and heavy and doesn't get thrown around in wind so I can put this on with no false alarms going off

I took out the batteries on mine as I didn't want it randomly going off while parked in garage (it is extremely loud). For my purpose its a roll away theft deterrent while out, a large bike that can't be easily lifted by 2 people isn't going far with this on the rotor. That said, the bike is stored in a secured location normally, so this is just added piece of mind. The motion detection is good, though a friend lost some equipment in a saddle bag they had accidentally left behind- so if the person is careful not to knock the bike hard, the alarm won't work. I also use it to lock gear to the bike when just walking around - thread cable through handlebars and jacket, lock to itself. Again - temporary deterrent when you're getting food. In the end, its a good secondary/temp lock for any bike, but it won't replace a safe parking area like a garage.

Next day to my door delivery. I think this is a great theft deterrent device. Built strong and well made (in China) The alarm is loud and annoying enough to deter an amateur. No one is going to roll my Harley Road Glide with the brake rotor locked to a better place to pick it up on a tow truck. They'll have to slide it around. I ride over 20k a year. This will give me a little more peace of mind.

I got these on a Sunday night put them on and went about my day. I live in an apartment and have camera on my bike. But cameras won’t stop a u-haul rental from stealing a bike. I’m a heavy sleeper and our apartment is pretty well sound deadened. I’d been asleep for about 3-4 hours when at 2 am I wake up and hear the alarms going off. I thought it was a tv show my girlfriend had put on. Then I hear the rain. I look out the window and remember I had put alarm locks on the bikes. Both alarms are goin off and I don’t know how long they were going off for. My camera hadn’t picked anything up from 11pm to 2 am when I went sprinting out the door. If you’re indoor or at least in a nice car port these work great. But outside if it rains you can expect to piss off your neighbors at 2 am