Speedy Gonzalez

Ask for the photo and a wider view photo. Say there were other cars around and you don't think it applies to you.

Although reading it again, it seems you may have been stopped by Gardai? Different rules there.

The gardai don't even need a speed gun to prosecute for speeding, their word is enough to get it to court and you can argue the toss there so they definitely don't need a picture of your reg.

If the Garda used a LIDAR gun, which I presume are the most common type in use today, According to my research LIDAR speed guns have a very narrow beam, approximately less than 1 meter over a distance of 300 meters.

Presuming this was the device used, and the Garda in question aimed correctly, then yes, you were the one speeding.

Uncorroborated opinion of speed isn’t acceptable for a prosecution. There are basic proofs required from an instrument approved by the commissioner - these are all either laser or radar detectors.

But such equipment doesn’t need to produce an official record. The evidence of the Garda will be accepted unless the defence can give rise to a doubt, for example evidence that the device was faulty, or that the Garda hadn’t been specifically trained in its use.

I disagree unless something has changed, it has been discussed quite thoroughly on the legal forum in the past. If the Garda forms the opinion you are speeding no device need be used. They could base this opinion on how fast they are going in their own car, the relative speed to others on the road etc but obviously a device with a reading makes for a more open and shut case.

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Comes with lifetime updates

This is a good point, and one which could be fairly contested IMO.

2.5mrad on the spec sheet is just the beam divergence, not even the camera pointing accuracy, so at 1193m here, the beam is 3 meters wide.

In theory it could be any of three cars.

If you operate from that perspective then if a truck can do 80kph then a car should be allowed do 90kph min. Would love to see a side by side of a fully laden truck and car doing an emergency stop from 80kph

Is that a genuine question or are you just looking for a squabble

I was in court (admittedly quite a few years ago) and someone was convicted of speeding on the evidence of a Garda who was driving beside him in his own personal car and read the speed from his own speedometer.

(I think the evidence ran along the lines of "i was doing X and he was doing way more than that because he left me for dust, basically" - but the point being there was no calibrated equipment involved, it was the Garda's evidence that stood)

On a related note and as the old Top Gear guys said and demonstrated when they were in Australia, speed limits were set based on cars that took a lot longer to stop than modern cars.

Have you ever tried stopping a motorcycle in an emergency?

It's inherently more unstable than a car and most of your braking is through the front wheel given the rear one could be hovering in the air.

A car meanwhile has braking to four wheels which tend to stay on the ground

Check out videos of F1 cars and MotoGP bikes braking - the difference is chalk and cheese (or life and death)

Motorbike riders are the most vulnerable road users and also the stupidest, the crazy things I see them doing in traffic on a daily basis. Asking to put speed limits up for them just proves this.