Is this Worth spending my money

I'm sorry but it is not worth! If this product is purchased for "mechanical" anti-theft (disc lock), then I do not recommend it! Lightweight and not very durable. In my opinion, the black part is empty because it houses the sound part and the battery compartment. The only positive note is the sound part .. the sound is very loud!

How to replace the battery of this alarm disc lock?

1. Open the bottom 4 screws and open the cover 2. Take out the battery compartment and remove the old battery 3. Insert a new battery, paying attention to "+" and "-" 4. Replace the battery compartment, close the cover, and secure it with screws again to complete the task

I would like to know what the diameter of the pillar of this motorcycle lock is. Is the diameter the same for different colors?

I guess you want to know this size. The diameter of the lock pillar is 0.25 inch, I think this is in line with almost 99% of motorcycle disc brakes unless your disc brakes have no holes.

Can this be used in rainy days?

It is not waterproof, the lock cylinder became rusty after using in a rainy day, the worest is I used it on my bike and it can not be opened with the key! I have to find a locksmith to open it. The cost is much expensive than the lock itself. BAD EXPERIENCE!

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Mathtoxyz Motorcycle Alarm Disc Brake Lock, Motorcycle Locks Anti-Theft Security Wheel Disc Lock Waterproof 110dB Alarm Sound with 5ft Reminder Cable Keys and Carry Pouch for Motorbike Bike Scooter.

Mathtoxyz Motorcycle Alarm Disc Brake Lock, Motorcycle Locks Anti-Theft Security Wheel Disc Lock Waterproof 110dB Alarm Sound with 5ft Reminder Cable Keys and Carry Pouch for Motorbike Bike Scooter.

Product ID: 321441414

Details

Brand
Mathtoxyz
Compatible Devices
Motorcycles
Maximum Range
15 metres
Noise Level
110 Decibels
Remote Control Included?
No

💧Waterproof aluminum alloy

🔊110dB piercing alarm

🔒Fits disc brakes ≤7mm

Description

🔐 Lock it loud, lock it proud – your ride’s ultimate guardian!

COMPLETE SECURITY KIT - Includes 5ft reminder cable, 2 keys, hex key, and a sleek carry pouch for on-the-go protection.
WEATHERPROOF DURABILITY - Crafted from waterproof aluminum alloy to withstand rain, sun, and harsh conditions.
SMART ANTI FALSE ALARM TECH - Advanced sensor algorithms minimize false alarms, ensuring peace of mind without nuisance.
UNMATCHED AUDIBLE DETERRENT - 110dB alarm instantly wards off thieves and alerts nearby onlookers.
UNIVERSAL FIT FOR DISC BRAKES - Compatible with most motorcycles, scooters, and e-bikes featuring disc brakes up to 7mm thick.

The Mathtoxyz Motorcycle Alarm Disc Brake Lock combines a powerful 110dB alarm with waterproof aluminum alloy construction, smart sensor technology, and universal compatibility for disc brakes up to 7mm thick. Designed for outdoor use, it includes a 5ft reminder cable, keys, hex key, and carry pouch, delivering robust anti-theft protection and convenience for motorcycles, scooters, and e-bikes.

Specifications

ASIN	B08W1H4QXL
Audible Noise	110 Decibels
Best Sellers Rank	#358,031 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #588 in Theft Protection
Brand	Mathtoxyz
Brand Name	Mathtoxyz
Compatible Devices	Motorcycles
Customer Reviews	4.5 out of 5 stars 2,539 Reviews
Includes Remote	No
Manufacturer	Mathtoxyz
Manufacturer Part Number	MA-CS-B
Maximum Range	15 metres
Model Number	MA-CS-B
Net Quantity	1 Count
Noise Level	110 Decibels
Number of Items	1
Remote Control Included?	No
UPC	887511762463
Unit Count	1 Count

Reviews

A**D

شكرا للبائع كما بالوصف

كما بالوصف

7.04.2026

A**O

Fatto bene e funzionante

Fatto bene e funzionante, il prodotto si presenta robusto e ben fatto facile da utilizzare.

21.06.2021

S**M

Pas trop encombrant et bien pensé

À date ça fait bien comme alarme et pas trop dispendieux

9.04.2026

Y**F

Happy very happy

Definitely worth buying I’ve bought 3 and happy with every single one of them very loud very easy to carry and easy to use

3.07.2026

M**A

Buon prodotto, robusto

Finalmente un buon prodotto economico ma funzionale e comodo

11.06.2021

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