Disc locks are the fastest, most portable way to stop a thief from rolling your bike away. This range pairs Oxford, Kovix and Zumolock hardware, from compact pin-only models to alarmed units that scream when tampered. Pick a hardened pin that fits your rotor holes and lock up every time you park.
Oxford Quartz XD6 Disc Lock - Yellow / Black
Oxford Disc Lock Alarm Alpha XA14
Kovix Overlord Disc Lock KNN1 Brushed Metal
Oxford Disc Lock Scoot XD5 - Black / Yellow
OXFORD MICRO XA5 DISC LOCK BLACK/BLACK
Oxford Monster Disc Lock - Yellow
Zumolock 3XX with Ram Security Knob
OXFORD NEMESIS 16MM DISC LOCK YELLOW
Oxford Disc Lock Alarm Boss 14mm - Yellow
Oxford Disc Lock Alarm Quartz XA6 - Yellow
Oxford Disc Lock Alarm Quartz XA10 - Yellow
Oxford Boss46 Disc Lock - 16mm Shackle
How to choose a motorcycle disc lock
The right disc lock comes down to three numbers: pin diameter, alarm volume and if you will actually carry it. A thicker pin resists bolt croppers, a louder alarm draws attention, and a smaller body is easier to keep in a jacket pocket so you never skip locking up.
| Type | Pin diameter | Alarm | Best for |
|---|---|---|---|
| Compact pin lock | 5 to 6 mm | None | Scooters, daily errands |
| Standard pin lock | 10 mm | None | Home and known parking |
| Alarmed disc lock | 7 to 14 mm | 100 to 120 dB | Street parking, travel |
Always check your rotor. Most road bikes use 5 mm or 6 mm holes, while larger adventure and cruiser rotors take a 10 mm pin. Oxford Quartz models cover both the XD5 5 mm and XD10 10 mm fitments. Alarmed units like the Oxford Screamer and Alpha XA14 add a 100 dB to 120 dB siren triggered by motion, so a thief gets roughly 3 seconds before the noise starts.
Use a bright reminder cable. A 1.5 m coil running to your bar or mirror stops the number-one disc-lock mistake: riding off with the lock still fitted and bending your caliper. Kovix builds hardened stainless bodies rated to resist corrosion in wet Australian winters, and most quality locks carry a 2-year warranty. The Kovix KNN1 uses a 14 mm pin for higher-end security, while a 6 mm cable adds a visual deterrent. Combine a disc lock with a chain through the rear wheel for layered security at home.
Frequently asked questions
What pin size disc lock do I need?
Check your brake rotor holes first. Most road bikes take a 5 mm or 6 mm pin, while many adventure and cruiser rotors fit a 10 mm pin. Oxford offers both, so match the pin to your rotor before buying.
Do alarmed disc locks really deter thieves?
Yes. Models like the Oxford Screamer and Alpha XA14 fire a 100 dB to 120 dB siren the moment the lock detects motion. That sudden noise draws attention fast and usually sends an opportunist thief running.
How do I avoid riding off with the lock on?
Use the bright reminder cable that runs from the lock to your handlebar or mirror. A 1.5 m coiled cable is hard to miss and stops you pulling away with the pin still through your rotor.