Stronger, smarter, more convenient to use... Thieves will go after the easiest target they can find. In independent test after independent test, XENA disc-lock alarms have been certified stronger and more difficult to remove than standard motorcycle locks. XENA locks are built and tested to rigorous strength standards to withstand:

• Angle Grinding
• Ice-Spray Attacks
• Lock Picking
• Cutting with Tungsten Carbon Blades
• Wedge & Leverage Attack
• Blunt Instrument Attack
• … and they also contain an alarm.

With current UK statistics showing a motorcycle is stolen once every 7 minutes, it's time for motorcycle owners to start taking security seriously. 

XENA alarmed disc-locks and accessories cater to a variety of security requirements (and budgets). The product line in detail:

Disc-Lock Alarms
Maximum Security
XN18
The world’s strongest disc-lock, with an 18mm high-security, four-way locking pin, reinforced carbide substructure and a fortified barrel with carbide underpinning. In low-light conditions, the XN18 even features a Blue LED warning light to indicate it is armed and ready.

XZN8, XN10, XN14, XN15
All locks in XENA's flagship XN series pass the strictest European strength standards with independent testing bodies such as Sold Secure (UK), ART (Holland), and SRA (France). XN range locks feature high nickel-content stainless-steel construction, double-locking mechanism, and carbide reinforced key barrel. Body sizes range from the light and small XZN8 to the streetbike-sized XN15.

Disc-Lock Alarms
Ultra-High Security
XH14, XH15
XH series locks feature Inert Gas-Hardened Steel body construction, double-locking mechanism and a 14mm locking pin. Two lock body sizes are geared broadly at sport bikes and street bikes respectively (see Fitment).

Disc-Lock Alarms
Very High Security
XE15, XEHD
XM14
Alarmed disc-locks with fit profile suited to larger bikes. Chrome molybdenum steel construction with 14mm hardened steel locking pin and double-locking mechanism. Highly visible XENA disc-locks.

Disc-Lock Alarms
High Security
XZ1, XR1
XZZ6
Precision-engineered alarmed disc-locks in hardened steel. The same 110 dB alarm as all XENA products, and come in a broad range of colours. They have a scaled down fit profile for smaller bikes and employ a push-down locking system. Suited to riders on a budget.

Accessories
Maximum Security
Sometimes peace of mind comes from knowing your machine is strapped down for the night. XENA XC chains and Claw disc-lock adaptors allow you to ground anchor your bike for heightened security.

Claw chain adaptors
Highly innovative and unique to XENA, the wedge-attack proof Claw chain adaptor series is certified SoldSecure, ART, Classe SRA and Thatcham. For use with XN14, XN15, or XN18.

XC Chains
XENA 14mm hardened-steel chains with sleeve combine with disc-locks and Claw adaptors to create a locked and alarm circuit and/or ground anchor your bike. Ideal for use with XGA ground anchors.

XGA Ground Anchors - NEW!
XENA's new virtually indestructible SoldSecure certified ground anchors come in three different sizes. See the product section for details.

Accessories
High Security
XV Cable with adaptor uses XENA disc-lock alarms to create a locked and alarmed circuit. A lighter more portable alternative to the XENA XC maximum security chain. Available in five lengths from 110cm to 800cm.

XENA disc-lock alarms are designed to fit the vast majority of standard motorcycle brake-discs. While exceptions do exist (ie, some bike models are shipped with more than one type of brake disc), a careful check of the following three relevant dimensions will tell you which XENA suits your bike best. To check our list of known fits and to download a XENA Lockfitter, go to Fitment.

1. Brake-disc gap: Standard on all models at 7mm.
2. Locking-pin size*: Ranges from 6mm (XZZ6) to 18mm (XN18)
3. Distance from locking-pin to back of disc-slot: from 42mm (XZN8) to 65mm (XN18) according to model.

*Note that the locking pin can pass through ANY hole on the brake disc.

Under normal use, batteries should last 8 months. Frequent alarm triggering, or extreme temperature conditions can affect battery life. A constant ticking noise or a noticeable deterioration in alarm sound quality are both indications that batteries are low.

Low batteries will affect performance. Replace batteries at the first sign of low power.

Your XENA disc-lock alarm is built to withstand tough weather conditions, including heavy rains. Each electronic module is sealed twice with a water-resistant coating, and an additionalrubber gasket placed in the unit during assembly and prevents water from entering the electronic housing.

That said, DO NOT immerse your XENA unit in water, and wherever possible, take pains to avoid overexposure. If the unit becomes soaked, disassemble and allow it to dry thoroughly before operating again. Wherever possible, avoid saltwater.

You can adjust the sensitivity of your XENA disc-lock alarm by positioning it at different points on your brake disc.

Alarm too sensitive: Place at 6 o’clock on disk.
Alarm not sensitive enough: Place at 12 o’clock to 3 o’clock on disc.

See your user manual for details.

Your XENA disc-lock alarm uses infrared to constantly check your brake disc. It needs to "see" what it's doing. A blocked reflector plate is the most common cause of false alarms. Be sure to check that the circular reflector plate is free from dirt or grease. Simply clean the reflector with a dry cloth.

A second cause of false alarms is low batteries. Typical battery life with normal use is eight months. Replace the batteries with a XENA XBP replacement pack and continue to enjoy the security of your XENA alarmed disc-lock.

Each lock is supplied with three keys and a key tag with 7-digit serial number beginning with the letter X (ie, X123456). Use this unique identification number to order more keys for your lock; the key tag should not be kept with the keys but stored in a safe place.

To cut new keys, we will require the metal keytag along with owner details (including name, address and telephone number) and a receipt for the purchase of the lock. Keys will only be sent to the owner’s address.

For more information, email us at: info@xenasecurity.com.

All XENA disc-lock alarms share the same alarm-sensor technology. No on-off switch is required. Just place the lock on the brake disc and lock into place. Your XENA disc-lock alarm has LED sensors that automatically detect the presence of a disc. Once locked in place, your XENA unit will beep once to confirm that it is fully activated.

Each XENA electronic module houses infrared transmitters and receivers linked to a microprocessor that allows your XENA unit to detect the presence or absence of a brake disc to arm or disarm. Moving the wheel or tampering with the unit while it is locked to your bike will trip one or both of the shock and movement sensors, setting off the alarm and warning you and any potential bike thieves.