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Open with your phone
100 dB sound
Attack resistant
Packed with features
Rain-proof design
Doesn't slow you down
TMD Chain Lock
Our keyless chain lock with built-in alarm. Protecting your ride with next-level security has never been this easy. Order yours with 20% pre-order discount. Expected delivery in April
Pre-order today, delivery in April
2-year warranty
14-day free returns
Product highlights
Open with your phone
100 dB sound
Attack resistant
Packed with features
Rain-proof design
Doesn't slow you down
A keyless experience
Open the lock with a press of the button when your phone is nearby. No more keys, just fast and secure access.

Intelligent alarm
Rest assured that the built-in 100dB alarm will scare away any thieves that dare to touch your lock.
A simple - yet powerful - mobile app
With the free TMD Locks mobile app, you can do so much more than just open your lock.

Give your friends and family access to your lock without having to duplicate and share physical keys.
View where, when, by whom and if your lock was used. You can also view the activity of people that you are sharing your lock with.
Always find your way back to your lock, by viewing where you've last used it.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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Customer Support
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FAQ’s
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Contact Us
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FAQ
How does the TMD Chain Lock work?
The TMD Chain Lock is a keyless chain lock that connects to the TMD Locks app on your smartphone via Bluetooth.
Once you're near your ride, the TMD Chain Lock will make a connection. You can lock or unlock the lock with a single tap on your lock.
The lock also features a built-in alarm, which you can activate via the app or by pressing the button on the lock twice.
Can I still unlock my TMD Chain Lock if my phone's battery is dead?
Yes, if your phone battery is dead, you can always manually unlock the lock using your unique code, which you can set up in the app. This code can be entered using the button on the lock.
How long does the battery last?
Battery life depends on usage. With normal use, a fully charged battery lasts about 9 months. Charging the battery from 0 to 100% takes about 2 hours.
How loud is the alarm?
The alarm emits a sound of approximately 100 decibels. Enough to scare any thief away.
What features does the app offer?
The app lets you unlock your lock, track its last known location, share access with friends or family, and more.
How secure is the TMD Chain Lock?
The TMD Chain Lock is ART-certified and approved by insurance companies.
While the lock body is designed to withstand the harshest conditions and attacks. Every component has been engineered to stop attackers.
The TMD Chain Lock is nearly unbeatable, withstanding high-velocity impacts, bolt cutters, and even sophisticated electronic attacks.
Shipping
We aim to ship your order within 1 business day.
Free returns
Not satisfied? You can return the product for free within 14 days, provided it is unused and in the original packaging. Please contact support to arrange this.
Warranty
We offer a 2-year warranty for consumers.

