Best Powersports Alarms & Anti-Theft of 2026

"I’ve been using this lock for a few months and I’m impressed with how quick and easy it is to attach and remove. The alarm is loud and responsive enough for my needs, and I haven’t experienced any issues with the locking mechanism. It’s exactly what I wanted for securing my bike when I run errands."

"With this lock, I feel much more secure about leaving my bike unattended. The build is hefty and solid, yet still compact enough to carry without hassle. The audible alarm is a great bonus, even though I couldn’t always trigger it, but the main locking function gives me peace of mind."

"After researching several brands, I’m convinced this is the best lock for motorcycle owners. It’s robust, reliable, and the alarm sound is extremely strong. The only minor downside is its weight, but that just adds to its sturdiness. It’s definitely worth every penny."

"Someone tried to steal my motorcycle, but this lock withstood serious abuse and protected my bike. The thief tried everything—from smashing the lock and tampering with the tire, to damaging the gas tank—and ended up leaving empty-handed. The lock did its job perfectly and was worth every cent. My only small complaint is the rubber cap for the keyhole doesn’t fit quite right, but that’s not a big concern in my area. I highly recommend this to every rider—it’s compact, quick to install, and truly effective."

"I’ve found the Kryptonite Disc Lock to be exceptionally strong and reliable. It’s lightweight, easy to lock and unlock, and the sleek design is a bonus. Whenever the key feels a bit stiff, a quick spray of WD-40 fixes it. Overall, it gives me great peace of mind and is a solid choice for security."

"This disc lock is simple to use, feels hefty and solid, and even fits under my motorcycle’s rear seat. I appreciate the inclusion of the reminder cable. My only issue is that the paint chips easily, so I keep it in a pouch to minimize wear. Still, it’s a great, practical solution for securing my bike."

"I've been using this disc lock for over a year and it’s proven to be durable and reliable. The alarm isn't too sensitive, which is great because it doesn’t go off with every gust of wind. The included reminder cable is really useful—prevents me from forgetting the lock is armed and keeps others away from my bike. Battery life has also been impressive."

"After having two electric scooters stolen, I bought this lock to secure my brake disc. It’s much harder to cut than a regular chain or U-lock, and the alarm is extremely loud. It gives a warning chirp before sounding the full alarm, which I think deters casual thieves. For anyone with a Gotrax GXL V2, it fits—just rotate the disc to find the right hole. Definitely increased my peace of mind."

"The alarm is very loud and the lock is easy to use. However, the alarm is sometimes overly sensitive—even a light touch or a breeze can set it off, which isn’t ideal for residential areas. Still, it does what I need and is competitively priced, but I’m experimenting with the reminder cable tension to help manage the sensitivity."

"I've been using this disc lock for over a year, and I'm impressed by its solid build quality and just-right sensitivity. The alarm is loud enough to deter theft, and the reminder cable helps me avoid setting it off accidentally. The battery has lasted a long time, too."

"After having two scooters stolen, I decided to try this lock, and it’s been a game changer. The alarm is extremely loud and gives a warning beep before going off fully, which is great. It fits my Gotrax GXL V2 with a bit of maneuvering. While it won't stop determined thieves, it's been very effective at deterring casual theft."

"The alarm is definitely loud and easy to set up, but for me, it's a bit too sensitive—even a light breeze or setting down my gloves can trigger it. It's a good product overall, but the hypersensitivity makes it tricky to use in residential areas without annoying neighbors."

"I've been using this lock every day and it's exceeded my expectations with its durability, easy setup, and intensely loud alarm—definitely a must for motorcycle security. The materials feel premium, and the lock operates smoothly. For its affordable price, it offers excellent value and peace of mind."

"This lock is perfect for quick stops, like when I'm in a store or bar. The alarm is super loud and reacts instantly if anyone tries to mess with my bike. I appreciate the bright reminder cord—it lets everyone know my bike is protected, and it fits easily in my KLX300's rear fender bag."

"I bought this after my moped got stolen, and now I feel much more at ease. The alarm is piercingly loud—enough to alert the whole neighborhood. So far, it's been reliable and easy to use, and I'm interested to see how long the battery lasts."

"I’ve never been one to leave reviews, but this product truly stands out. The alarm is incredibly loud—enough to catch anyone’s attention nearby. Worth every penny and I’ll definitely purchase it again!"

"For me, the alarm’s sensitivity is impressive—even the smallest movement sets it off on my trike. It’s easy to carry and install, plus it’s so loud it’s almost ear-piercing. Planning to buy more for my other bikes."

"What I appreciate most is the chirping warning system before the alarm fully activates. This helps avoid unnecessary noise from minor disturbances. It’s a sturdy lock, fits my Vespa perfectly, and the battery life has been great."

"I use this for my toddler's power wheels after having issues with toys getting stolen. The alarm is loud enough to attract attention, and the range is good. Once it's mounted, it feels sturdy and difficult to tamper with. While I wouldn't put it on something really small, for bikes or ride-on toys, it gives me some peace of mind and a bit more security."

"I installed this on my motorcycle as a backup for my factory alarm. It's actually more sensitive than the stock system. The alarm is very noticeable and should deter thieves, though it's not a guarantee. The remote is handy, but the range isn't quite as long as advertised unless there are no obstacles. For the price and simple setup, I'd recommend it for anyone seeking extra theft protection."

"The Guardian Alarm is super easy to install and extremely loud, giving me a sense of security when leaving my pushbike unattended. The sensitivity is adjustable and the remote both sounds and lights up when the alarm is triggered, making it clear when it's my bike going off. It's compact, weatherproof, and the batteries are inexpensive to replace. I’ve started using it on my power tools for added protection."

"I received my motorcycle lock alarm super fast, and it works just as promised. The alarm is impressively loud and the build quality feels solid. For the price, it’s a great deal compared to other expensive options—definitely worth the money."

"This lock is a game-changer for me. It fits my disc perfectly, feels heavy-duty, and the alarm is seriously loud—perfect for scaring off anyone who tries to mess with my bike. It’s incredibly easy to use and has given me total peace of mind wherever I park. I recommend it to any motorcycle owner who wants reliable security."

"I put this lock on my Apollo scooter and it actually stopped someone from stealing it—they cut my regular lock but couldn’t get this one off. The alarm is extremely loud and sensitive, so make sure you take what you need before arming it, but it absolutely works for keeping your ride safe."

"I've been using this lock daily and it’s very sturdy, easy to install, and the alarm is impressively loud. The build quality feels premium and it works smoothly every time. Great value for the price—highly recommended for motorcycle security!"

"For quick stops, this lock is perfect for deterring opportunistic theft. The alarm is extremely loud and the bright reminder cable makes it obvious that my bike is secured. It fits easily in my KLX300 fender bag and gives me peace of mind while I’m away."

"I attached this to my moped after it was previously stolen, and now I feel much safer. The alarm is piercingly loud and definitely capable of attracting attention. So far, it’s been reliable and easy to use."

"I've found this grip lock to be solid and reassuring in its design. I was drawn to it because I sometimes forget things, and a disc lock worried me—I'd hate to accidentally ride off with one engaged. This lock is quick to attach and remove, making it part of my daily routine. The only minor hiccup was unlocking it the first time, but that was easily resolved. I feel it’s a great deterrent for casual thieves and a solid addition to my bike’s security."

"After trying a few different brake locks, I have to say this one stands out for its ease of use and sturdy build. I appreciate that I don't have to crouch down to attach it, unlike disc locks, and there’s no loud alarm to accidentally set off. It feels robust yet isn’t too heavy, and the brand’s quality is evident. So much so, I bought a second one for my other bike."

"The bright red color of this lock really catches attention on my Vespa, and its solid design gives peace of mind. The adjustable inserts helped me get the fit just right, keeping my throttle and brake secure. It’s clearly a visible deterrent and feels tough to tamper with. While it’s a bit bigger than I expected and initially scratched my brake lever before I added spacers, I’d still choose it again for its straightforward security."