Nexmio Disc Lock Alarm
The pocket-sized anti-theft system that locks your brake rotor solid and unleashes a 110 dB siren the moment anyone touches your bike.
- ✓110 dB motion-triggered alarm — impossible to ignore
- ✓Hardened alloy clamp physically stops the wheel
- ✓USB rechargeable — 2-hour charge, months of standby
- ✓Locks in 3 seconds, fits in a jacket pocket
- ✓Includes reminder cable, 2 keys & charging cable
You know that feeling walking back to where you parked — and slowing down for half a second?
Most stolen motorcycles aren't hot-wired by masterminds. They're rolled away in silence — two people, thirty seconds, into a van. Steering locks snap. Cable locks fall to a bolt cutter. The bikes that don't get taken are loud, locked, and more trouble than the one parked next to them.
Two layers of defense in one 3-second habit
Layer one: steel. Nexmio clamps through your brake rotor with a hardened alloy body. The wheel physically cannot turn — no rolling it away, no riding it off.
Layer two: sound. The instant it's locked, it's armed. Any bump, cut, or lift triggers a 110 dB siren that turns a quiet theft into a public event.
Under the shell
Die-cast shell built to shrug off cutting, prying, and drilling attempts.
Arms automatically on lock. Warning chirps first, full siren on continued contact.
Chainsaw-loud. Heard across a parking lot, through a helmet, over traffic.
2-hour charge, months of standby. Cable included — no coin batteries ever.
Rain, spray, dust, road grime — built for bikes that live outside.
Lock, 2 keys, coiled reminder cable, USB charging cable, carry pouch.
Three seconds to armed
Push the lock through a hole in your brake rotor until it clicks.
The alarm arms itself with a chirp. Hook the reminder cable to your bar.
Anyone who touches the bike gets 110 dB of regret. Unlock with your key and ride.
Nexmio vs. the usual suspects
What riders say
Questions, answered
Will it fit my motorcycle?
Nexmio fits virtually any motorcycle, scooter, or e-bike with a disc brake. If it doesn't fit your ride, send it back within 30 days for a full refund.
How loud is 110 dB, really?
About as loud as a chainsaw at arm's length — painful to stand next to and impossible to ignore across a parking lot.
What if it rains?
The body is sealed against rain, spray, and road grime. Park outside year-round.
How long does the battery last?
A 2-hour USB charge keeps the alarm on standby for months. Charge it like your phone — no coin batteries.
What if I forget it's on and try to ride off?
Every Nexmio ships with a bright coiled reminder cable from the lock to your handlebar, so you'll see it first.