LefZe
Junior Member
Hi,
Today was my unlucky day... I just got busted in a police radar control riding bike, a FZ-6N (80hp).
The speed limit was 60km/h and the radar showed 87km/h (90 - 3 km/h, as they take 3km/h off), so I lost my license (loose it at 86 in 60 zone in Norway..).
The thing is that I was crusin around in 70-80km/h and my speedometer showed 82km/h when I was caught, and I admit I was crusin too fast, but not so fast I could loose my license. I explained this to the police and I asked if I could do another test in their radar to see if my speedometer actually shows such a big difference between what I saw on my speedometer compared to their radar. The first test round I did 59km/h and the police wasn't able to catch me on the radar.... In the second go I did the same speed (59), and they cought me this time and said the radar showed 65km/h. I thought a regular speedometer should show about 5% less than the actual speed, but Yamaha seems to underestimate their bikes...
Could it be that my speedometer actually shows the wrong speed at the time? Have I been crusin around 10% too fast without knowing it? Could there be any factors that could cause the speedometer showing the wrong speed when I got caught?
I haven't had the bike on service this year. It's a 2008-model, 18.000km in total, and I had it on service last season at 12.000km. It has been stored in a garage all winter (took it out about one month ago).
My tires are ok, but will be replaced soon...if I can convince the police that I should keep my license. I don't think the tires are the cause for the faulty speed on my meeter. I need proof that the speedometer actually was showing the wrong speed to be able to fight the truth.
It was very windy that day as well, but I don't remember if I had head or tail wind at the spot. Could it be that the speedometer is controlled by RPM? If I had tail wind wouldn't the bike go faster at a lower rev and indicate a lower speed?
I don't know how these speedometers works on this bike, so if anyone could explain that to me, I might be able understand this and ride again as soon as possible!
Thanks
Today was my unlucky day... I just got busted in a police radar control riding bike, a FZ-6N (80hp).
The speed limit was 60km/h and the radar showed 87km/h (90 - 3 km/h, as they take 3km/h off), so I lost my license (loose it at 86 in 60 zone in Norway..).
The thing is that I was crusin around in 70-80km/h and my speedometer showed 82km/h when I was caught, and I admit I was crusin too fast, but not so fast I could loose my license. I explained this to the police and I asked if I could do another test in their radar to see if my speedometer actually shows such a big difference between what I saw on my speedometer compared to their radar. The first test round I did 59km/h and the police wasn't able to catch me on the radar.... In the second go I did the same speed (59), and they cought me this time and said the radar showed 65km/h. I thought a regular speedometer should show about 5% less than the actual speed, but Yamaha seems to underestimate their bikes...
Could it be that my speedometer actually shows the wrong speed at the time? Have I been crusin around 10% too fast without knowing it? Could there be any factors that could cause the speedometer showing the wrong speed when I got caught?
I haven't had the bike on service this year. It's a 2008-model, 18.000km in total, and I had it on service last season at 12.000km. It has been stored in a garage all winter (took it out about one month ago).
My tires are ok, but will be replaced soon...if I can convince the police that I should keep my license. I don't think the tires are the cause for the faulty speed on my meeter. I need proof that the speedometer actually was showing the wrong speed to be able to fight the truth.
It was very windy that day as well, but I don't remember if I had head or tail wind at the spot. Could it be that the speedometer is controlled by RPM? If I had tail wind wouldn't the bike go faster at a lower rev and indicate a lower speed?
I don't know how these speedometers works on this bike, so if anyone could explain that to me, I might be able understand this and ride again as soon as possible!
Thanks