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Self-cancelling indicators may save your life

Smart Turn System Self-cancelling indicator may save your life
Smart Turn System Self-cancelling indicator may save your life. BUY NOW!

If you’ve ever had a driver pull out in front of you because you left your indicator on, now you can help prevent that with these self-cancelling indicators.

The Smart Turn System really works and we have such confidence after testing them we have included them in our online shop. For just $160 they may be a life saver.


All cars have self-cancelling indicators as standard equipment, but very few motorcycles fit them as standard.

Now you can have the same safe turning system on just about any bike. They work with most models and the developers will soon have a system for BMWs and Harleys with separate left and right indicator switches.

Smart Turn System

The kit consists of a small cigarette-lighter-sized black box that contains the electronic sensors. There is also a short cable with five wires and connectors for left and right indicators, flasher relay, GND and power supply.

It can be fiddly to install. We took almost three hours to fit it to our 2010 Triumph Bonneville T100, mainly because the bike’s wiring diagram didn’t match the actual wiring.Smart Turn System Self-cancelling indicator may save your life

Anyway, with trial and effort, we got it fitted and the wires tuck neatly away with the sensor box in a horizontal position hidden discreetly under the tank.

Best of all; it works!

Self-cancelling indicators in action

For my first test, I headed to a nearby roundabout beside a major shopping centre.

On several occasions I have indicated to exit the roundabout, forgotten to switch off the indicator and queued traffic waiting to exit the shopping centre has driven straight out in front of me.

This time the Start Turn System switched off as soon as I changed direction from the exit turn. I like that they cancel quickly.

The best self-cancelling indicators I have used are on Harley-Davidsons which also cancel straight after your turn. Most others switch off too late and, in my opinion, that’s dangerous.

There have been many occasions I have nearly T-boned a car that has driven out in front of me because I have forgotten to switch off my indicators.

It’s not that I’m stupid. I ride a lot of test bikes, some with self-cancelling indicators and some without.

When I return to my bike from a test bike with auto indicators, I tend to forget to switch off the indicators the first few times.

Even so, there are also occasions when I simply forget, or leave them on too long and give a false impression of turning a corner.

I’ve trialled these indicators in virtually every indicator scenario I can think of and they simply work.

When changing lanes on a highway, they will self-cancel after 12 seconds. If you haven’t done your lane swap by then, you are indicating for too long.

If you need to cancel the indicators sooner, you no longer push the cancel button in. You simply push the indicator the same way you indicated.

If you push the cancel button, you will feel that it doesn’t click any more. That reminds you to push the button sideways, instead.

The kit also includes small rubbers to stop the indicator switch locking into position. It actually gives the indicator a plush and expensive feel.

Smart Turn System Self-cancelling indicator may save your life
Rubbers being fitted to indicator assembly

How it works

The Smart Turn System uses motion sensors that send 300 data elements per second about inclination, heading, vibration and acceleration.

It’s not a simple lean angle or timed system like on some bikes. It’s a complex algorithm that seems to account for every scenario.

That means it can discern between someone sitting at the lights with their indicator on, lane changes on a highway, using a roundabout or making a simple turn on the move.

While we don’t believe safety devices should be forced on anyone, we do believe that you are safer with self-cancelling indicators. And with these aftermarket units, you don’t need to buy an expensive bike.

However, don’t be fooled that drivers will stop driving out in front of you. They still don’t tend to look, so take care!


  1. Had self canceling indicators on several bikes. Disliked instensely as they cancel at the wrong moment or failed to cancel.

    With self cancelling indicators you get in the habit of indicate and then indicate again if there is any doubt as to whether they might cancel.

    Having the same action for indicate and cancel is really really dangerous. Now a rider has to look at the idiot lights to determine if indicators have canclled or not whilst navigating a hazard, rather than just thumbing the button again just in case.

    1. Hi Rowland,
      Do you also check that the doors are locked twice before you leave home?
      I’ve not had these indicators fail once to cancel indicating.

      1. I’m with Rowland, 100% got them as standard fitment, hate the bloody things and for the exact same reasons.

        IMO the best ever system was the 70’s hold in buttons on the FL, FX and XL HD’s

  2. I had self cancelling indicators on my old Yamaha SR500, don’t know why the technology was dropped, as IMO the advantages outweighed an disadvantage.

  3. It looks the goods. However, I agree with Rowland about the cancelling system. I regularly push the button to the side to indicate, then do it again just as I’m getting to the corner to ensure that I’ve done it. That would result in cancelling the signal which is the opposite of what I want. It seems odd to not leave the cancelling action that same as always by pushing it in.

  4. I think they are a great idea & whilst I would like to think I have never left my indicator on I have been on plenty rides where a mate has.

  5. Mine are time and distance based, so start indicating they switch off before you reach your turn. They also stay on after making the turn for acertain time or distance, which is not the best, but still better then not having any self canceling. And for $210 why not make it compulsory? Certainly if build into the design the cost would drop drastically.

  6. Why is there not a ADR rule to include them from brand new?
    I can only believe it is the manufacturer’s reluctance to put any safety gadget on a new bike which increases the retail ask. The lowest common denominator in competition is the RRP.
    It has taken EURO 4 to place the safety inclusion of ABS brakes into new bikes made after 1 Jan 17, and Australian riders benefit by overseas regulatory actions. Indicator’s next please, Euro mob.

  7. Got them on my BMW with the flappy paddle buttons. 3 buttons. One on either side to starting indicating. A different button on the right to cancel. Sounds weird when compared with the standard single button indicator on most motorcycles, but once I got used to them, I actually prefer them.

    The self cancelling on the BWM works brilliantly, triggering on either 200M distance or 10 seconds of movement. Which ever comes first. Doesn’t sound like much but I’ve found it’s actually about perfect for turning or lane changes, even on freeways. Just hit the indicator and concentrate on the lane change. No worries.

    I’m getting a new bike soon which will have the standard type of non-cancelling indicators. I’ll miss them.

  8. Why change standard way of cancelling indicators? Would have to be some really good reason to get me onboard. I mean you don’t bring out a new car where you change the accelerator to be on the left instead just because you can.

    I don’t know if giving up more and more control and becoming more and more lazy and / or reliant on stuff like this is a good thing. It’s like asking your wife who hasn’t been in a manual car for ages to move your car, and she puts the gear in without pushing the clutch down and stalls it several times, even though she used to be really good at driving it. Nah, I prefer to be in control and keep on top of how to be a good driver, including changing gears and flicking indicators on and off myself.

    Statistics probably shows I’m wrong in terms of what’s better for the average person though.

    Aaanyway, thanks for the article.

  9. My friend was killed after he forgot to turn off his indicator. After turning left, he continued straight with the blinker still on. A new red P plater was waiting to turn right in a side street. He had his indicator on, he must be turning left. He didn’t slow or veer to the left as an indication that he may turn. But the P plater thought he must be turning, due to his left indicator being on. So he pulled out right in front of him. My friend died at the scene. Had he turned it off, he would be alive today.

  10. I had early model self cancellers from late 80’s sure sure they weren’t perfect but neither is that bike we’re all riding. One of them worked off same style switch that your thermostat control unit used to work off and the other was simply timer think was 15 seconds. Long time ago. If even one, which there is, safety foundation looked at them and realized the auto braking last second style is fucking bad azz! All you haters, just jealous you didn’t come up with it first. And BTW both of these safety features are required on ALL new vehicles. I’m just saying. We get headlight from factory till 2012 models, that’s same brightness as lights from 70’s. All new cars are all fluids full synthetic, Christ sakes even in 2006 on cruisers and up why the hell are progressive fork springs not standard? And what kind of azzhole does away with a full gauge!? A dumb one that’s who. I applaud you guys and your innovation and thinking, BRAVO!

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