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Xena XX15 Disc Lock with Alarm
  • Xena XX15 Disc Lock with Alarm
  • Xena XX15 Disc Lock with Alarm
  • Xena XX15 Disc Lock with Alarm

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Xena XX15 Disc Lock with Alarm Videos

Xena XX15 Disc Lock

An extremely strong lock body and piercing alarm make the high-performance XX15 a remarkably effective way to protect your motorbike. 

Lock: High nickel-content stainless-steel mono-block construction with a broad fit profile and 14mm (9/16") double-locking, carbide-reinforced hardened-steel locking pin. Freeze-spray resistant, pick-resistant key and barrel.

Alarm: Shock & motion sensors trigger a piercing 120dB anti-theft alarm powered by a single CR2 long-life Lithium battery. Self-arming, with no on-off switch, re-sets to armed mode within 15 seconds.


  • 2 3/8” (60mm) throat width
  • 9/16” (14mm) diameter carbide-reinforced hardened-steel locking pin
  • 100% stainless steel 
  • Total corrosion resistance 
  • Double-locking system 
  • Maximum security key & barrel 
  • Freeze spray-resistant key barrel 
  • Ultra-high strength
  • 120dB alarm
  • Auto arm/disarm 
  • Shock & movement sensors
  • Removable alarm module  
  • Weight: 740g


  • 1 XENA Disc-Lock
  • 1 CR2 Battery
  • 3 Keys
  • 1 XENA Lock Tool Etched with Unique Key Code

Please Note: Battery comes pre-installed in lock.

Product Style RevZilla Item # Manufacturer Product # Availability
Stainless Steel 893642 XX15 In Stock: Ships within 24 hours


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Xena XX15 Disc Lock with Alarm 4.5 5 14 14
Good lock for the money... After reading other reviews, I was a little worried when I purchased this, but the lock worked great. You do have to be ready when you take the lock off of the bike, since you only have a little time before setting off the alarm. If you follow the instructions, the lock works great... The sound is probably not as loud as I would like, but it is enough for people to know that someone is messing with the bike. I put the lock back in the packaging when I do not us it and I have not had any issues with it going off in my saddle bag. October 19, 2015
Everything you could want out of a disc break lock/alarm The company was very easy to deal with prompt and courteous. the device is easy to use and I've had no issues with it, so far it's worked flawlessly June 30, 2015
Strong and Effective The first one I received would not arm and Revzilla was very quick in replacing it. Once I started to use it I found it very easy to place on disc and remove. I haven't needed to place a reminder cable on it due to the fact it activates alarm at the slightest movement. June 29, 2015
Great Lock, Finicky Alarm The alarm itself is great. It's made of heavy duty metal. I've had my lock for a while and there are scuff marks from use plus wear and tear. However the metal isn't displaced from me being putting it in a mail box and retrieving it when I returned home. Also, it hasn't rusted (even around the scuffs). I've had the alarm since February 2014. The alarm is loud. 120 dB is loud, not enough to burst eardrums, but enough to make you want to figure out how to make it stop or get away from it. It works fairly well when the IR line is actually broken. There is a sensor in the alarm itself that reads and arms when the IR line is broken (by the brake rotor) and you lock the lock with a key. The problem with this alarm is that if you have a gap in your rotors (supersport brakes), it might not arm the alarm properly. It'll still lock though. I can't speak for other bikes, but I know that for the front brake rotor of a 2008-2015 R6, the alarm will NOT arm. So that was just another function that was advertised but I was unable to utilize it. Double check what other people are saying about the models or you're going to have a hard time trying to figure out how to arm it and break the IR beam to arm the alarm. The IR beam and sensor is about 1.5 cm away from the locking shaft. You CAN (if you're really wanting to make it work) stick a piece of paper in the locking slot, break the beam that way, and force the alarm to arm. However, if the paper falls out in the middle of the night, all your neighbors are going to hate you. January 8, 2015
Favorite new gadget I live in St. Kitts, in the Caribbean. It's mostly ghetto here and I own one of like 3 CBR's on the island. So everywhere I go, I get shifty eyes and sketchy characters walking up and checking out the bike. With this lock, I sleep so much better at night. Loud as heck alarm, if you're close by; enough to scare off anyone trying to mess with your bike. Sexy finish, quality parts, takes half a second to install and sneaks into my tiny storage space under the back seat (with undertail exhaust that eliminates all the space back there) Highly recommend to all my friends. It seemed a little pricey at first, but then I thought that this would last me for years and years. Totally worth it in my mind. October 14, 2014
Alarm inconsistent but the overall lock works I bought this lock because of the alarm feature and the alarm works when it wants to. The instructions were unclear on how to arm and unarm the alarm of the lock, also the battery was a pain to install the first time. When I'm riding, the lock is in the tail of my bike and about a week ago from today (9-1-14) the alarm has been slowly going bad. It goes off when it's in my rear seat, and the actual alarm itself isn't as loud. The good news is that it's still a lock and it's hard to pick so the primary function is still there. However, if your buying this because of the added alarm feature, skip this product. September 1, 2014
Easy to use, hefty, and loud It installs easily. The "warning" beeps clearly let you know when it is armed or when it is about to go alarm. Definitely wear hearing protection if you are going to experiment with it. It was not clear to me in the description and this is my first disk alarm so I did not know it is intended for the front disk. I assumed it was for the rear. Knowing that, I probably could have used a slightly smaller one. Regardless, I am pleased. I did not rate durability because I have just bought it but it seems like it is built to last. August 5, 2014
Works Well, but Cumbersome I have purchased several Xena disk alarms over the last eight years. This new version is nice, but more difficult than past models to lock. Past models took a 1/4 turn of the key to lock / unlock, but this new version takes a 1/2 turn. If I cock my hand and get ready, it is doable, but if I forget to rotate my hand 1/2 turn the other direction before starting, then I do not have enough twist left in my wrist and I need to let go, untwist my wrist, then continue with the unlocking turn. During this time, the alarms goes off like a maniac and I go deaf. I liked the 1/4 turn better. April 28, 2014
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