1. Motorcycle Scooter Wheel Disc Brake Lock With Loud Alarm Anti-Theft Security (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
120 DB Loud alarm sirenSuitable for disc brakes with a thickness of up to 7mm

2. GHB Alarm Disc Lock Anti Theft Lock Security Alarm Disc Disk Lock Padlock with Alarm Sound 120db for Motorcycles, Bicycles and Scooters (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
The Anti Theft Lock is made entirely of metal, it is sturdy and durableThe alarm sound is able to reach to 120 db, the measure of the locking pin 7 mm that allows us to set at 360 degrees, and it is possible to fix it in any position

3. AUDEW Motorcycle /Scooter/ ATV /Handlebar Grip Lock ,Anti-theft Brake Lever Security Lock, Throttle Grip Lock Yellow (Click Link to Check Price on Amazon)
Editor's Rating : 9.5 out of 10
-Simple to use, highly visible, easy to use, Designed as strong enough and light in weight-Built-in stainless steel wire, difficult to cut with a saw, Widely used for all scooters, motorcycles and ATVs

4. MysBiker Disc Brake Lock, Anti-theft Motorcycle Motorbike Alarm Disc Lock, 110dB Alarm Sound and 6mm Pin with 1.5m Reminder Cable for Motorcycles (Click Link to Check Price on Amazon)
Editor's Rating : 8.9 out of 10
â–¶Make Thieves'Lost': MysBiker Alarm Disc Lock-Silver Knight is a practical solution for bikers to protect their beloved motorbikes or bikes while parking outside or at home.Up to 110 decibel alarm will automatically activate upon sensing any vibration or shock,keeps your belongings safe and sound.â–¶Easy to Notice: Enclosed 1.5m disc lock reminder cable which is designed to attach to the brake or clutch lever and locked disc lock when you leave your motorcycle or bikes.Reminds you to remove the lock,and prevents potential damage caused by riding away while the disc lock is engaged.

5. TCMT Wheel Disc Brake Lock Safety Alarm Anti Theft For universal Scooter Motorcycle Cycle Bike (Click Link to Check Price on Amazon)
Editor's Rating : 9.1 out of 10
Conditon:Aftermarket 100% Brand New,Colors: Silver,Alarm loudness: >100dB,Weight: 620gMain parts are made of the high-quality harden stainless steel and metal.