Tinylume DiscGuard
Tinylume DiscGuard
Park with a visible lock and a loud alert if your bike is moved.
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110 dB AlarmMotion alert
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7 mm PinCheck disc fit
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Press to LockKey to unlock
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USB ChargingCable included
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Alloy BodyEasy to carry
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Two KeysSpare included
See shipping options at checkout. Questions about fit? Ask TinyLume.
Description
An alarm that adds a second line of defence. Clip the TinyLume DiscGuard onto a compatible brake disc to limit wheel movement while your bike is parked.
How the alarm reacts
With the alarm armed, vibration can trigger a warning chirp. Further movement can trigger the siren. Use the key to disarm the unit before removing it.
Quiet mode
Use the silent locking mode where an alarm is unsuitable. Follow the instructions supplied with your unit to select it.
Check your brake disc
Check the pin can pass through an opening, the body can reach it, and the lock clears the caliper and nearby parts.
Body and charging
The bright alloy body is easy to spot. Recharge through USB-C and check the battery before leaving the bike parked for long periods.
In the box
- TinyLume DiscGuard alarm disc lock
- Two keys
- USB-C charging cable
- Hi-vis reminder cable where included in your selected kit
How to use
- With the bike parked, line up the locking pin with an opening in the brake disc.
- Press the barrel to lock and check for the arm confirmation described in your manual.
- If included, loop the reminder cable from lock to handlebar.
- Before moving the bike, unlock the unit and remove both the disc lock and reminder cable.
For quiet locking and battery indicators, follow the instructions supplied with the lock.
Shipping and returns
Check available methods, rates and estimated delivery at checkout. Read our shipping policy for details.
See our returns policy for eligibility and contact support@tinylume.com before sending anything back.
Measure an opening in the rotor and check clearance around the brake disc. If you’re unsure, send our team a photo of your brake disc and your bike’s make, model and year.
- TinyLume rider support
- Delivery options at checkout
- Clear returns information
Make your bike a harder target
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A steering lock is one layer
A separate disc lock adds another barrier when you park, even on short stops.
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Make your security visible
A bright lock gives someone a reason to notice your bike is secured before they touch it.
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Layer up for longer stops
Pair it with a suitable chain or anchor where possible, especially for overnight parking.
Press to lock. Ready when you park.
Line up the pin, press the barrel and check that the lock is armed. A warning chirp can alert someone who moves the bike; continued movement can trigger the full siren.
When you’re back, turn the key and lift the lock off the disc before moving the bike.
Built for everyday parking
A compact alloy body sits directly on a compatible brake disc. The bright finish makes it easy to see and the pocketable format is easy to carry from one stop to the next.
Dry and inspect the lock periodically if you ride in wet or salty conditions.
How DiscGuard compares
| Feature |
TinyLume DiscGuard
|
Basic mechanical lock |
|---|---|---|
| Motion-triggered warning | Warning chirp and siren | No built-in alarm |
| Bright, visible finish | Hi-vis yellow | Varies |
| Power and charging | Rechargeable via USB-C | No battery needed |
| Portable disc lock | Compact design | Varies by model |
| Fit and returns help | TinyLume support | Depends on seller |
Comparison is with a mechanical disc lock that does not have an alarm.
Check your disc before you order
DiscGuard can be used on motorcycles and scooters with a compatible rotor. Check the opening, how far the pin needs to reach, and clearance around the caliper. Send us your model and a close-up of the brake disc if you’re unsure.
Fits your routine. Recharges by USB-C.
- Check the rotor: make sure there is a suitable opening and room for the lock body.
- Top up by USB-C: charge time and battery life depend on use and conditions.
- Lock up at each stop: keep the key handy and remove the lock before moving the bike.
TinyLume customer care
Help before and after your order
Questions about compatibility, delivery or a faulty item? Tell us what happened and include your order number if you have one. For return eligibility and instructions, check the store policy.
Seven questions, answered
Will it fit my motorcycle or scooter?
Fit depends on the brake disc openings, reach and clearance. If you’re unsure, send your bike’s make, model and year plus a close-up of the disc.
How do I put it on and remove it?
Align the pin and press the barrel to lock. Use the key to unlock and remove the lock and reminder cable before moving the bike.
Can a disc lock stop every theft?
A disc lock limits wheel movement and the alarm can draw attention. Use it as one layer, alongside a suitable chain, anchor or secure parking when practical.
What happens if the bike is nudged?
The vibration sensor can sound a warning first. Repeated or stronger movement may trigger the siren. Follow the supplied instructions if you prefer quiet mode.
How do I recharge the alarm?
Use the supplied USB-C cable. Check the battery regularly; runtime depends on temperature, use and how often the alarm sounds.
What if I lose a key?
Keep the spare separate from the key you ride with. If both are lost, contact us for guidance.
What if it doesn’t suit my setup?
Contact us with your bike and order details. Our returns policy explains eligibility and how to start a return.
Ask TinyLume
Still have a question?
For fit checks, setup or help with an order, email support@tinylume.com or use our contact form.