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Xena XX-6 Disc Lock with Alarm
  • Xena XX-6 Disc Lock with Alarm - Yellow
  • Xena XX-6 Disc Lock with Alarm - Yellow
  • Xena XX-6 Disc Lock with Alarm - Stainless Steel
  • Xena XX-6 Disc Lock with Alarm
  • Xena XX-6 Disc Lock with Alarm - Stainless Steel

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Video Review

Xena XX-6 Disc Lock with Alarm Videos

Xena XX-6 Disc Lock

High-grade mono-block alloy construction and piercing alarm make the XX6 a remarkably effective way to protect your motorbike or scooter.

Lock: Fits virtually any scooter or motorbike, with a high-grade mono-block alloy construction and a 6mm steel pushdown locking pin. Ice-spray proof and pick proof key and barrel.

Alarm: Shock and motion sensors linked to a sophisticated microprocessor trigger a 120dB alarm powered by a single CR2 long-life Lithium battery. All electronics are housed in a replaceable alarm module -- no tools required. Self-arming, with no on-off switch, re-sets to armed mode within 15 seconds


  • 1 5/8" (42mm) throat width
  • 1/4" (6mm) diameter hardened steel locking pin
  • Ideal for smaller bikes and scooters
  • High-nickel-content stainless steel body
  • Push-down locking system
  • Ice spray-proof and key barrel

Included Items:

  • (1) Disc lock
  • (3) Keys
  • (1) Alarm module removal key
Product Style RevZilla Item # Manufacturer Product # Availability
Yellow 736400 XX-6Y/XX6-Y In Stock: Ships within 24 hours
Stainless Steel 736405 XX-6 SS In Stock: Ships within 24 hours


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Xena XX-6 Disc Lock with Alarm 4.1 5 99 99
Easy Defense, Loud Alarm! Protect your investment. Especially if you have a sport bike - you never know who's scoping out your ride. No, this lock is not impermeable. It will, however, give you exactly what you need if someone tries to steal your bike; it will simultaneously prevent them from rolling the bike, AND the alarm will assault your eardrums, bringing the attention and anger of anyone within 100 feet! Only problem is, the accelerometer in the alarm is VERY skittish and will go off easily when you are trying to unlock it. So ultimately, you get a good level of safety for a relatively little price. A worthwhile investment. August 17, 2015
Embarrassing on Road Trips This disc lock is quite effective at giving me peace of mind while my bike is sitting overnight. It is solid, heavy, and has quite a sensitive motion/shock sensor that reminds you of its presence on your disc if you forget to take it off and try standing up your bike. In terms of taking it with me on short rides or road trips, it's quite a nuisance. For whatever finicky reason, the sensor that is meant to disable the alarm feature unless there is a disc blocking the photogate no longer functions. I even designated a little velvet drawstring pouch to keep it from being damaged. In my pocket, in my tank bag, in my saddle bag, it will not stop going off at the slightest motion. After a few days on the road my dad liked to point out to strangers that I have a little bird in my saddle bag. There were times where I made sure to not put the lock in my bag until we were ready to leave the motel, but even sitting on the bed all alone it would go off. I have mixed feelings about whether I will be sad or relieved when the battery finally dies from over-use because while I will no longer have an audible high-pitched alarm, I will be left with a functioning disc lock that is bright yellow. I might still have an imprint of "XENA" in my stomach from all of the times I've had to smother the disc lock in my stomach so the neighbors won't think I'm trying to steal my own bike. TL;DR: It's a great lock to leave at home in the garage if you don't want people looking at you suspiciously at stop lights. July 16, 2015
Decent lock, terrible alarm For a pin lock that would be difficult for crooks to remove, this lock looks good for that. If that was how it was promoted, I would have nothing but good to say. BUT it is promoted as an alarm system as well, and frankly, it is a poor one. Mine did work for the four days that I needed it to, but broke shortly afterward. The alarm NEVER QUITS! I cleaned the reflector multiple times, but it simply never shuts off. This makes it impossible to carry with me, sort of useless at this point. Speaking of the alarm, don't expect it to wake you unless you are sleeping with your bike. When you are on top of it, the sound is piercing, but move just a few steps away and then not so much. In short, don't buy this for the alarm feature, you will be disappointed. May 31, 2015
Good lock, alarm is average I bought this disk lock for my ZX10R for parking outside at night. The disk lock works just like it should. The tumbler seems a little loose inside but works good enough. I wish the alarm was a bit louder, but that's because its being used under a bike cover. All in all, it seems like the cheapest acceptable option for a disk lock with an alarm. May 12, 2015
good products Good product. Easy on/off. Could use a better key. May 4, 2015
Horrible lock This alarm is horrible. the alarm will never stop going off unless you take the battery out. The wind will set it off all night. Horrible product it does not do what it is supposed to. If you don't believe me look at the other reviews and youtube videos that are not made by Xena or revzilla. Revzilla please take this off your site everyone that I know that has gotten it including me has hated it. April 25, 2015
Battery died within days The battery for this alarm died immediately. I got one alarm out of it when I was assembling it, and the battery drained right after. As a Disc Lock it's fine, as an alarm it's rubbish. February 23, 2015
Won't shut off and doesn't work in rain. The first sensor triggered whenever a car went down the street - no matter what part of the rotor I installed it on. I called Xena and without hesitation they sent me a new sensor. During the summer I found that putting it in the topcase made it scream constantly and kill the battery. In the late Fall it wouldn't shut off whenever I installed or removed it. I called Xena customer service and was told it was due to rain on the mirror (opposite the sensor). The customer service rep told me that I should wipe it off before/after locking. He also told me he's send another sensor, but that never happened. I'm installing a full-featured alarm with remote. Don't want the hassle of a poorly designed and poorly supported paper weight. Bike: 2013 V-Strom 650 Adventure January 12, 2015
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Have a functionality, fit, or otherwise product-specific question about the Xena XX-6 Disc Lock with Alarm? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Xena XX-6 Disc Lock with Alarm
Already Asked: 13 Questions, 80 Answers
Sort by:
RevZilla Store asked: Why did you choose this?
Rudolph B: Needs something visible to hopefully deter thieves and something audible to attract attention should they not be initially detered. Jun 30, 2015
Daniel C: The alarm feature attracted me. Jun 28, 2015
John M: Wanted small, cost effective alarm to use when traveling and staying overnight away from home. Much simpler than installing full alarm system and should be just as effective. Wish there was a pager option though. Jun 8, 2015
Steven S: based on online reviews May 3, 2015
S A: The price and the majority of positive reviews Apr 25, 2015
Russell D: pin size Apr 8, 2015
Brian R: This alarm fits my bike and does exactly what I need it to do, deter theft. It's very loud, and easy to put on. I sometimes have trouble getting it unlocked so the alarm has gone off on me a few times which is embarrassing, but I have had no problems with false alarms. I set it on my front caliper at about 1 o'clock and it seems to work great. Mar 18, 2015
Brandon H: Affordable and reliable disk lock to help deter thieves. Mar 16, 2015
wilian r: i choose this xena XX-6 so that i could have some peace of mind that my bike will be there when i get back, but this is obviously not full proof because a bike can easily be picked up. Feb 25, 2015
Dennis B: I choose the Xena XX-6 Disc lock after researching lots and lots of reviews of disc lock and found this one to be the best. Dec 1, 2014
Mark G: Good reviews and very visible. Sep 29, 2014
Daniel C: You can never have enough security on the road for a super touring bike. Went with this one on recommendation from one of Revzilla's gear guys. Works like a charm. Sep 23, 2014
Alex S: I chose this because it can fit thru the rear rotor vent hole. It looks awesome and indestructible. I plan on complimenting it with the XX14 for the front rotor soon to replace the Kryptonite I already have. These are the "Nth" layer to my bike security. Sep 15, 2014
Eleazar H: I choose this because I want to feel safer whenever my bike is parked on the street. Sep 7, 2014
Leslie S: Prefer smaller form factor and seems good enough. Aug 28, 2014
Noel R: small package and it's loud! Aug 13, 2014
Louis-Daniel B: to increase security on the bike. liked that alarm goes off on movement...but not much help if i don't hear it :) Jul 9, 2014
Evgeny N: Color and price - perfect Jun 23, 2014
mario b: To alert my dog when the alarm goes off, he goes straight to the glass door when the alarm sounds. Jun 19, 2014
Maria C: need a visual/audio/physical deterrent to keep the local thief away Jun 19, 2014
Kevin B: Alarm, and security Jun 8, 2014
Tony V: Needed protection Jun 2, 2014
Rene H: I chose this totally rad looking lock because i needed a little more protection for my sportbike plus the sound from the alarm is worth every penny !!!! thanks Revzilla you guys rock ohh yeah baby !!!! May 21, 2014
A A: I love my bike being my bike. May 17, 2014
Shawn M: Has an alarm and the bolt fits my rotor. May 5, 2014
Mauricio J: To protect my street triple, plan to install it in the rear disc brake. Apr 28, 2014
Angus M: Light weight disc lock with alarm Apr 22, 2014
Michael A: Peace of mind. Apr 14, 2014
Marcos F: Alarm Feature Apr 11, 2014
L P: Lock my scooter when I go to Key West, FL. Mar 8, 2014
Christian C: Want to protect my Ducati 1199. Worry about jackasses on the street getting on the bike for fun while parked on the street. Mar 7, 2014
Timothy P: Mid price point, shot in the dark hope it works well Mar 1, 2014
Jason J: Great product. Feb 10, 2014
Torian M: Had a previous bike stolen right in my yard. With this I hope to hear/deter theft of my new bike Jan 16, 2014
Alexander Z: Needed a lock for my bike. Jan 15, 2014
Rhett V: I chose this because I do not have a garage to lock my dr650se in. I also commute to areas in Honolulu where motorcycle theft is very common. This lock is extremely solid and the alarm feature adds a to the security of your bike. Dec 1, 2013
Allison H: Audible alarm. Nov 15, 2013
Rolando A: to protect my motorcycle Sep 28, 2013
Jose R: good product and best price. it was recommended by a friend. Sep 19, 2013
Michael G: Best alarm-lock made that will fit on my rear disk, in my opinion. Would have loved to use the XX-14, but that model with the larger bolt will not go through the vent holes in my rear disk. I think it's most important to have the alarm on the rear, where it's harder to defeat. I use a conventional (non-alarmed) lock on the front. Got this one in the bright yellow color. Aug 27, 2013
Adam F: It had awesome reviews and I needed it for where I worked in a downtown area. Aug 23, 2013
Timothy D: It was the best option for theft/vandalism deterrent. Aug 19, 2013
Randolph B: First try at a disk lock with alarm. Your video reviews very helpful. I think with the alarm it will keep me from trying to drive off without taking off lock first (like I did with other non-alarm models). Aug 19, 2013
Ernesto G: rated well, easy to use and carry Aug 18, 2013
A shopper asked: Does vibrations or louder exhausts from other motorcycles set off the alarm? Apr 28, 2011
Answer this · Send to friends Good question? Yes (1) No (0)
Timothy M: thought this is a good question since I only just got my lock. set the lock on my bike and had a noisy hog gun it. set off the neighbors car alarm but not the bikes. aimed the pipe right at it and it didn't react till the almost touching the lock. do not bump the bike or jiggle the stearing it or the alarm will go off. I 'm now deaf so no more Mr. Experiment today. Jul 18, 2012
Reply to Timothy Good answer? Yes (2) No (0)
Jduh: Nope, I live close to a highway and to vibrations did it yet. Also, I park it kind of close to the garbage bins, and it never went off when the garbage truck came. There is also a bump a few feet away from where I park my bike, and many cars "jump" over it, and that didn't set it off either. Jul 29, 2011
Reply to Jduh Good answer? Yes (0) No (0)
Chris K: I have a Xena system on my bike and it has not gone off unless the bike was actually moved. There is a combination of vibration sensors and a gyroscope that determine the alarm function, so it usually is pretty foolproof. Apr 28, 2011
Reply to Chris Good answer? Yes (0) No (0)
Austin A: I had my brothers zx10r right next to my bike with this lock on and he really let it rip and it did not go off. The alarm is more physically sensitive than anything else Oct 2, 2013
Reply to Austin Good answer? Yes (0) No (0)
TDevil7: No, the bike must be physically moved. If the axis of the lock changes the alarm goes off, so vibrations from cars or exhaust will not set off a false alarm. Feb 5, 2012
Reply to TDevil7 Good answer? Yes (0) No (0)
Josh704: As far as I have seen it won't. I live in a pretty populated apartment complex and alot of people with subs etc and haven't had any issues yet. Sep 24, 2012
Reply to Josh704 Good answer? Yes (0) No (0)
sky07430: WilliamL,

I have not had that issue. Right now, bike has been parked in a quiet place.
Thanks for the heads up.
May 10, 2011
Reply to sky07430 Good answer? Yes (0) No (0)
Shifties: If they redline their bike within 10-15 feet of yours. I think its possible.... Sep 24, 2012
Reply to Shifties Good answer? Yes (0) No (0)
stuffas: No. It's not a sound-pressure trigger - it's a motion trigger. May 28, 2013
Reply to stuffas Good answer? Yes (0) No (0)
David R.: Not yet for mine. Jul 4, 2011
Reply to David R. Good answer? Yes (0) No (0)
A shopper asked: I noticed while testing this product moving it around about my house the alarm will sound whether locked or unlocked. How do you ride with this in a backpack or something similar without the alarm sounding? i can't seem to find a way to achieve walking around with it without the alarm going off. thanks May 1, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
Evrol P: The alarm is activated once you press down the cylinder which is also the key hole. You can turn and lock the device without pushing the cylinder down while its in your back pack I do it all the time. The only time it needs to be down is when in use. If your device is still sounding an alarm with the key hole cylinder in the raised position then you have a defective device and should seek out warranty services. May 2, 2014
Reply to Evrol Good answer? Yes (0) No (0)
Darrick V: I only have the same problem when I have the reminder cable inside the lock. If there is no cable or nothing metal in the lock I don't have the problem.

When I did have the reminder cable in the lock in my bag while on the bike it would go off sometimes. I would shake the bag until the alarm went off.
May 2, 2014
Reply to Darrick Good answer? Yes (0) No (0)
Darrick V: Locking\unlocking it has nothing to do with enabling\disabling the alarm. The alarm is simply enable with something metal in it. Either a disc brake from your moto or a reminder cable while in the bag. Just make sure the is nothing inbetween the lock while carrying it in your bag. May 6, 2014
Reply to Darrick Good answer? Yes (0) No (0)
Louis-Daniel B: After locking it should give a short beep indicating it is armed. While locked , little motion will trigger the alarm. Unlocking it typically means deactivating the alarm. Try locking then unlocking, maybe this will reset it. Good luck May 1, 2014
Bart S: I only have this issue when I attach the alarm to my bike seat while reading but not when I carry the alarm in my pocket. It is sensitive to motion though and the alarm should not go off when unlocked. May 1, 2014
Reply to Bart Good answer? Yes (0) No (0)
ciprian p: I'm not sure. I bought this as a present for a friend so I'm not sure how he does it. May 1, 2014
Reply to ciprian Good answer? Yes (0) No (1)
A shopper asked: does it fit a 2007 gsxr 600? Apr 28, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
Jimmy C: Yes it does fit. It should fit most bikes. I sold my Gsxr a while back. Now I have a cbr1000rr and it still fits on my current bike Apr 28, 2014
Reply to Jimmy Good answer? Yes (0) No (0)
Diego U asked: Would this lock fit on any bike? More Specifically, a 2007 Yamaha FZ6? Mar 27, 2014
Answer this · Send to friends Good question? Yes (1) No (0)
justin s: I had to throw this out after having it for about three months. Apparently ants like to get inside and nest. Once they took hold of it the unit would randomly go off and eventually stopped working all together. I would not order it again. Mar 29, 2014
Reply to justin Good answer? Yes (0) No (3)
Hao D asked: Does the locking pin on the XX6 fit through the vent holes on a 2nd generation Ninja 250R? Sep 9, 2013
Answer this · Send to friends Good question? Yes (0) No (0)
Ashton E: Hi Hao, forgive me, I have an '08 Yam Fazer 1000 with stock discs and I thought the vent holes on Japs if not most modern bikes would be standard. I bought it without worry of that since the Xena specs on their site didn't mention any make or model that you had to specify before purchasing.
That being said, I believe you're pretty safe in getting the XX-6. I got the silver and wished I got the yellow just to give it that extra deterrence. Its very loud and the sensitivity is good enough to not go off unless the bike is intentionally shaken or moved. Passing vehicles on the road shouldn't set it off but if it does, it is not going to stay on forever.
A great security buy.
I also fitted a Spy 5000 remote start alarm with motion sensor but I use the Xena more. It just might be all you need.
Sep 19, 2013
Reply to Ashton Good answer? Yes (0) No (0)
Hao D: Confirmed. It will fit on a Ninja 250R 2008+ but the entire brake disc will be in the throat of the lock. It will NOT fit in the vent holes. Sep 19, 2013
Reply to Hao Good answer? Yes (0) No (0)
Ernesto G: I have a BMW g650gs and it fits fine. But I find it easier to go thru the larger gaps in the disc. This lock will reach! Sep 18, 2013
Reply to Ernesto Good answer? Yes (0) No (0)
Dennis N: I wish I knew. I ride a 2009 BMW K1300S and the locking pin on the XX6 fits perfectly through the vent holes on my bike. By the way, the lock is great! It is highly visible which deters would-be thieves, it is easy to use, and definite triggers an ear-piercing sound when activated. Sep 18, 2013
Reply to Dennis Good answer? Yes (0) No (1)
DJ R: Yes the disk hole is plenty big just like on a bigger ninja 6r Sep 18, 2013
Reply to DJ Good answer? Yes (0) No (1)
Kelvin C asked: I have a 1996 Harley Davidson Sportster 883. I believe it has stock discs. Would you happen to know which of the XX series locks would fit? Jun 13, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Scott C: It appears the XX-6 Should fit your disc-lock in addition to many other size Disc locks offered by Xena. You can confirm on Xena's site which allows you to search your bike model. Jun 17, 2014
Reply to Scott Good answer? Yes (0) No (0)
Louis-Daniel B: Sorry but revzilla team could tell you :) Jul 1, 2014
Reply to Gerald Good answer? Yes (0) No (1)
A shopper asked: I have this and have been using it for about 10months. Seems the battery is starting to die, what is the process for replacing the battery and can I order it from Revzilla? Is it a specialty battery? Feb 10, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Patrick K: The type of battery you need is a CR2 3v Lithium Battery type, so you can purchase at almost any local store. Installation is easy but I recommend using earplugs when changing the battery. You can also find the manual for Xena XX-6 online. Google: Xena XX-6 manual

Feb 19, 2014
Reply to Patrick Good answer? Yes (0) No (0)
Chad J: You can order it from Xena, a quick google search will get you there.

I didn't check to see if RevZilla carries replacements.
Feb 18, 2014
Reply to Chad Good answer? Yes (0) No (0)
Javier V: As Patrick mentioned, changing is easy. There is a youtube video on how to change the battery. Just do a quick search. Mar 23, 2014
Reply to Javier Good answer? Yes (0) No (0)
A shopper asked: Hello! I am trying to see which one of these Xena locks would fit my bike. it's a SYM Wolf Classic 150 - a small 150 cc bike, front brake is 240mm, rear 130mm. Any ideas on which Xena lock would fit best?
Thank you,
Jul 8, 2012
Answer this · Send to friends Good question? Yes (0) No (0)
Timothy M: Go to the Xena website you can print off a template that has all the thickness of the lock throats and their depth along with the pin size. just cut it out and slap it on on the disc brake it tells you which locks will fit. Jul 18, 2012
Reply to Timothy Good answer? Yes (1) No (0)
RevZilla: You will need to measure the distance from the outside diameter of the brake disc to the inner diameter of brake disc. Once you have that measurement you will be able to verify it to the lock you are interested in. The lockS we offer usually are accompanied with a schematic showing the distance between the locking pin and inside of the lock that goes over the disc. For example, the Xena XX-6 will fit over a disc brake that is not more than 42 mm (outer to inner diameters). Jul 18, 2012
Reply to RevZilla Good answer? Yes (0) No (0)
Shifties: If you're going to get an Xena, the XX-6 is the smallest one. And the one most likely to fit your bike. The larger ones may not fit. Sep 24, 2012
Reply to Shifties Good answer? Yes (0) No (0)
A shopper asked: I'm looking for the right one for my ninja 300 ABS ES 2014 series? Oct 12, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Mathew B: Measure the diameter of the holes in the brake rotor and the width of the rotor itself. Then compare these to the dimensions of the lock. They come in a few different sizes and one should fit your application. Dec 3, 2014
Reply to Mathew Good answer? Yes (0) No (0)
Louis-Daniel B: these seems to be pretty standard. goes on the break disk... Oct 19, 2014
A shopper asked: Will this fit a triumph bonneville? May 7, 2015
Answer this · Send to friends Good question? Yes (0) No (0)
Matt C: Almost certainly. I haven't seen a disc this won't fit in...

If you're worried, just grab a ruler and check the holes. 1/4" is 6.35mm, so if the hole is at least that big, you'll do fine. Bonus points for a metric ruler.
May 7, 2015
Reply to Matt Good answer? Yes (0) No (0)
A shopper asked: Will this fit a 2012 kawasaki ninja 250? What would the loudness of the alarm noise compare too? Feb 7, 2015
Answer this · Send to friends Good question? Yes (0) No (0)
Hao D: It will fit on a 2nd Gen Ninja 250R 2008+, but the entire brake disc will be in the opening of the lock. It will NOT fit in the vent holes. Mar 16, 2015
Reply to Hao Good answer? Yes (0) No (0)
A shopper asked: Which is the correct Xena disc lock for 2004 Yamaha Royal Star Midnight Venture? Apr 19, 2014
Answer this · Send to friends Good question? Yes (0) No (0)