Motorcycle Blog

I have a datatool alarm fitted to my bike, and have so far found a number of pro’s and con’s.  Naively, I had hoped for merely pro’s when buying the bike.


  • You can leave the bike anywhere without having to carry a lock of any sorts;
  • There is no possibility of riding off like a spoon with a disc lock on and damaging the bike;
  • In our tightly-squeezed garage to try and nick anything would probably set off the alarm from the one bike;
  • The default sets the alarm itself when you leave the bike if you forget to do so.


  • It has had to go back to the garage (big thanks to OnYerTriumph for sorting this for me) to be de-sensitised as it had an annoying habit of setting off randomly without any trigger;
  • I have discovered there is not enough time to wheel it out the garage, down the drive, and onto the road in the time between turning the alarm off and it re-setting itself;
  • The default sets the alarm itself when you leave the bike for too long which means you have to set the alarm on ferry every time you want to do something with the bike, whether that be a good old clean or merely filling up with petrol at the gas station;
  • A bike not in regular use will have its battery drained quicker than one without (although apparently there is a ‘winter mode’ to assist with this).

I must confess that most of the cons are merely down to me not yet being used to adding in another stage to the process when setting off for or finishing a ride.

In all, I think I would recommend to people who are given the option when buying new or nearly new to have an alarm fitted, if only for the additional piece of mind when you leave the bike places, and the extra factor in your favour when the police and insurers question you should the worst happen and someone steal your pride and joy.

I have spotted that the datatool website talks of linking the alarm to your mobile phone. Has anyone tried this, and is it worth setting up?

As of 19 June 2014, Rhiannon is no longer a partner of the firm.

  • Phil

    June 12, 2009 at 9:10 pm

    Out of interest, as a firm of biking solicitors, have you come across ant cases of accidents caused by faulty alarms (maybe immobalisers cutting in mid corner?). Running a datatool on a blackbird at the mo and given 2 total losses in 2 years, and the strict insurance conditions on my policy i’m more than happy to have the alarm on. Ride safe 🙂

  • Andrew Dalton

    June 23, 2009 at 7:38 pm

    Hi Phil, as the senior partner I have got the longest experience at my firm, and I can truly say I have not come across an alarm immobiliser causing a moving accident. Side stand cut out switches cutting out the engine whilst the bike is moving has been one I have come across costing one lad most of his foot. The bike cut out, then violently restarted, sliding over and puncturing the rider’s foot with the footpeg then tearing the top half off. Nasty.

    I have got a very good auto electrician in Aylesbury, Paul Deacon at Car Concepts, who is also a very keen biker. If you are local to Aylesbury I would get Paul to have a look if your alarm is causing cut outs. Clearly anything which interferes with the power delivery is a major safety issue, but my bike is alarmed (factory fit by BMW) and no problems and my old CBR 6 had a data tool alarm, which was relaible but horribly sensitive.

    Bikes cuttng out mid corner seems to be related to either fuelling problems, engine management systems or side stand cut out switches but so far, no alarms. ask for Paul or Brian, both good lads, both really proud of their work and have tricked up all the gizmos on my bike!

  • phil

    July 11, 2009 at 4:39 pm

    Thanks for the input. No problems personaly here, but over the years i have heard several stories from solicitors / crash investigators who have claimed imobalisers have been known to fail and cause accidents. I wondered if the severity of these stories was becoming over empaphised by one or 2 potential incidents being quoted several times in different forums.

    Good to have a second informed opinion 🙂

  • Pau Deacon

    September 8, 2009 at 3:59 pm

    Just came across your blog site by chance, nice one, thanks for the thumbs up from all at Car Concepts !
    All the best, Paul.

  • Matt

    August 2, 2010 at 7:08 pm

    I had a bike stolen, was fitted with an armed and healthy Datatool S4 – I was never more than 30 feet from the bike, and the alarm didn’t make a peep in the course of the theft.

    Can I claim from Datatool? Thanks

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